The next morning I went out and the 3 amp fuse was blown, so I replaced it and went inside to turn the heater on. I have read that this is often caused by the pump or fan. But for those who’ve recently encountered one common issue – a furnace blowing its fuse – before scheduling that tune-up, it may be due to one or more of the following reasons: 1. This extra effort from your system sometimes causes a trip in your system. The 5 amp fuse on my control board blows as soon as you ask for heat. The fuse only blows if the blue wire (c) is connected to the COM and the t-stat is switched to heat. It has no issues with fan and cool calls. This morning when I got up the temp was at 59 degrees and nothing but the blower running. Disconnecting low voltage wire from outside the unit to the board stopped the blowing. A heat pump that doesn’t turn on is a fairly common and easily remedied problem. If the fuse keeps popping in your air conditioner, you have a 24 volt short. 3 Amp Fuse to Heating keeps blowing, why?!! We replaced the thermostat in the house, that didn't help. The HP has a thermocouple mounted to the outside wall. There’s a problem that’s causing your heat pump to pull more power than it should. Thread starter Stevenfyeager; Start date Jan 25, 2019; 1; 2; Next . My car has 160000 miles. There are two wires that go outside. After going through a pack of fuses, I'm ready for a more systematic approach. The unit was off and the 3 amp fuse was blown. I’ll get a new board. Just connected all wires to zone board and disconnected wires to defrost board. I also have blowing fuse problem. problems contact webmaster@doityourself.com. When they replaced it , it blew a 20 amp fuse. As soon as you request heat the fuse blows and when I try to run the fan to on nothing happens. Heat Pump Breaker Trips - Richard, my breaker keeps tripping for my heat pump. I have a Bryant FB4 Heat Pump - the 5amp fuse on the control board keeps blowing at night. Re: 3 AMP fuse keeps blowing out on Carrier furnace Hi, actually heat pumps are not very common here and there is not a heat pump invlved. HVAC electrical troubleshooting. Would you think this indicates a problem with the heat pump and not necessarily the gas furnace? V12Tech. Tags: fuse blow; oil boiler ; ThatchedPhil New Member. The 3 amp fuse on the board would blow instantly. I was expecting the heat pump to come on but it didn't. make sure the wires are disconnected and the power is turned off. Could it be causing this issue? I was blowing the 5 Amp fuse on the control board for my forced air gas furnace. Go. Well tonight, randomly, the ac shut off. The issues we are having is the 3amp fuse keeps popping. So I'm working on a sure comfort Nat gas furnace. The first time it blew fuse, I I am wondering what you think could be the problem to prevent these nuisance trips. Last night I changed the tstat hoping it was that and it … read more. Boiler internal fuse keeps blowing. I am still popping fuses and reading over 24 volts. Solved, see below. As of today, the board no - Answered by a verified HVAC Technician Asked November 22, 2016, 1:38 PM EST. They put in new fuse and it ran fine till this week. The Furnace Fuse Keeps Blowing. Might be two conductors touching,causing a short circuit or someone has monkeyed with it before. If you fix the fuse once and it immediately blows again, you have a much larger problem on your hands that seriously needs to be addressed. This is what I wrote in this post: “If the fuse is blown check all your low voltage wiring to make sure it is not grounding out anywhere. I have checked all leads/cables in the airing cupbaord are not pinched/uninsualted and there are no water leaks evdient. I turned off the input power and attached terminal R (24 VAC power to thermostat) and the fuse blew. hi all, after a bit of advice. However, when I switch to the a/c, it blows the 3 amp fuse immediately. This guide to electric furnace troubleshooting explains the common causes and fixes. The 3 amp fuse has blown today in the spur supplying it. The fuel pump was bad and was replaced under warranty. I want it fixed so my heat pump … I can hook the the a/c (one wire connects to COM) and run the a/c and the fuse does not blow. Hello, I have a Goodman Heat Pump (GSZ14) with Single Stage Heat and Cool plus backup electric auxiliary heat. So it gets cold in the house and I realize I have not heat. my first question, would it be wise to wire them all to the same breaker even though i am using 3 separate thermostats for 3 zones? My car has 160000 miles. This is what I wrote in this post: “If the fuse is blown check all your low voltage wiring to make sure it is not grounding out anywhere. In April I replaced a fuel pump in my S10. WTH? I don't know anything … Basement Wall Leaks - Broken Water Pipes or something else? First, turn off the heat pump immediately and call a heating repair professional to find the problem. So I replaced the fuse, put the panel back on, and it didn't turn on. I've removed low voltage wires coming from thermostat and ac unit and I've removed the 9 pin connector for the 24 volt circuit within the furnace. The number of actual blown fuses in this country is becoming fewer and fewer as people continue to have their old fuse boxes replaced by new electrical panels 200-amp service, and circuit breakers. The first time it blew, the technician replaced the fuse and the system still wouldn't start. The installers had drilled a 2" hole through the side of the building through the rim joist to run the line set through. Hi Gary! But for those who’ve recently encountered one common issue – a furnace blowing its fuse – before scheduling that tune-up, it may be due to one or more of the following reasons: 1. Within a 1.5 secs after I push door switch in the 3 amp fuse blows. It always seem to blow just when we turn the temp. My furnace is a Concord model CG90UB. Septic pump keeps blowing fuse. My hvac blower control board keeps blowing the 3 amp fuse as soon as the heat cuts on, whats the deal? Model #CB29M-41-2P AIR HANDLER. Some of the most common problems are: Low refrigerant. Permalink. The unit runs ok for a few days and presto the fuse popped again. If you fix the fuse once and it immediately blows again, you have a much larger problem on your hands that seriously needs to be addressed. Copyright© If your air conditioner is tripping the breaker or blowing a fuse, there could be a few issues at hand. Yes..... from each wire to ground. gas4you, 6 Mar 2009 #5. drpepperlover. I have a heat pump with natural gas backup. second, should i just wire the 3 zones separately? Some of the most common problems are: Low refrigerant. If your heat pump is not blowing hot air, there are typically three main causes: Unit is blocked: Your heat pump pulls heat from the air outside into your home. He then determined it blew my Carrier Thermidistat. We replaced the thermostat in the house, that didn't help. Replaced fuse but every time switch on boiler it blows again immediately. Heat works fine. 5 months later. Impedance across condenser contactor is 12.4 and impedance across reversing valve coil is 12.9. I have a 5 year old goodman heatpump with a 15 year old furnace. That's correct, the zone board runs off a separate breaker/transformer. The next morning I went out and the 3 amp fuse was blown, so I replaced it and went inside to turn the heater on. December 22, 2019. up. The circuit breaker is doing its job by tripping and cutting the power before something worse (like an electrical fire) happens. Disconnected wire from control panel and the fuse stays good (but the A/C of course doesn't turn on). Common Reasons Your AC Fuses Keep Blowing. Asked November 22, 2016, 1:38 PM EST. Ecobee4 on heat pump 2 zone system...problems... Trane Heat Pump 24 Volt Electrical Problems, SER cable vs Conduit - Indoor subpanel ampacity/temperature questions. Took the panel off, and the fuse was blown again. I am a big dIYer and am trying to fix my HVAC. Since some furnaces can require a lot of electricity, homeowners must ensure that they have an adequate electrical system to support the furnace. pump and diverter valve are in airing cupbaord in bathroom next to hot water … I have goodman unit with furnace inside and and outdoor AC/heat. I checked and the furnace was off, fuse blown and thermostat was asking for cool. Heat works fine. Extending WiFi across yard to another home, How to fix a misaligned interior door lock. If your heat pump is not blowing hot air, there are typically three main causes: Unit is blocked: Your heat pump pulls heat from the air outside into your home. Couple of days ago the system failed to run, in either heating or cooling modes, althought it ran fine a few days earlier in ac mode this year. They were all OL. I want it fixed so my heat pump … I don't know anything … Last night I changed the tstat hoping it was that and it … read more Just relocated my thermostat and did the bad thing not marking my wires. S. Stevenfyeager Senior Member. After putting my old Honeywell (CT3600) t-stat back on, the system ran fine for a few hours then blew the fuse again (upon the start of a cycle). Solved, see below. That's first time is blew in ac mode) I have checked voltages, amp of gas valve, shorts to ground, and cannot find any issue. That is why I'm thinking the HP isn't working correctly. Twice in less than a 12 hour period, my Carrier 58CVA furnace blew the 3 amp fuse in the control board. Should I get a replacement defrost board? Heat Pump Stopped Working After Power Outage, Blowing 3 Amp Fuse. Why? If your heat pump is not blowing cool or warm air, or if it is not coming on, check the fuses and reset them, if necessary. You could try just connecting the R and C connections. However, when I switch to the a/c, it blows the 3 amp fuse immediately. I do not know if the fuse blew during operation, shutdown, or when the next request for cool happened. $6.99 $ 6. Fuse in Air Handler Blowing - Caused by something in Heat Pump. I was blowing the 5 Amp fuse on the control board for my forced air gas furnace. Just driving and then loud buzzing alarm noise in car! Any suggestions? Joined: 6 Mar 2009 Messages: 8 Thanks Received: 0 Location: Bournemouth Country: boiler is potteron flamingo system has header tank in loft 2 floors above. There are a number of reasons why your air conditioning system keeps blowing a fuse. 1x 1000w pulls 4.2a at 240v Steve Arnold. Hi, My electric went out and when it came back on my thermostat kept clicking and my heater/air conditioner was not working. I have a 4 Ton Performance Series 2 Stage Heat Pump (25HPA648A003) and a FV4CNF005T00 - 4 Ton Bryant Air Handler. model wise, all the baseboards are cadet softheat liquid filled. 4 times a month. I have a Goodmand Heat Pump Package Unit M#GPH1342M41AC unit is about 7 months old. N ever had a problem with the a/c in the last 10 years and now I have this problem. Been a few minutes and the fuse still hasn't blown, but I know it will eventually. First, turn off the heat pump immediately and call a heating repair professional to find the problem. I have checked all leads/cables in the airing cupbaord are not pinched/uninsualted and there are no water leaks evdient. Is my sub panel grounding correct( with diagram) ? zones: 1- master and bathroom 2- great room (1500w x2&1000w) 3- kitchen & office with 500w The thermostat said backup was on. They also ran the thermostat wire through the 2" hole. We welcome your comments and During those hot and muggy summer months, or during those subzero cold winter months, heat pumps can ensure room temperatures are comfortable for your entire family. 4x 500W pull each 2.1a at 240v I don’t have much knowledge with HVAC but I now know more than the average joe. Any suggestions would be appreciated. The Furnace Fuse Keeps Blowing. Unlike other heating systems, they don't generate heat but rather transfer it from one place to another within a home. Heat Pump Breaker Trips - Richard, my breaker keeps tripping for my heat pump. In April I replaced a fuel pump in my S10. Anyway, is a Honeywell crap thermostat and I went BYRWG as indicated inside the thermostat. Blown fuses usually result either from an appliance putting too much strain on the fuse or by an electrical short in the system. Discussion Starter • #1 • Feb 22, 2012. to this site, and use it for non-commercial use subject to our terms of use. I checked that power is reaching both units. Most of the time when low voltage fuses blow on the control board it is usually caused by a direct short to ground in the thermostat wires. 5 months later. After a while the A/C turned off. I then opened up the air handler and found a blown fuse. I can have the unit on AC and it runs fine without blowing a fuse but as soon as i switch it to heat it blows the fuse. All information is provided "AS IS." 60 Pack 3 Amp ATC Fuse Replacement Blade Style Standard Size 3A Fuses with Fuse Puller for Automotive Car Truck Boat. The 3 amp fuse on the board would blow instantly. I was told it would automatically switch over to gas at a certain temp. Since some furnaces can require a lot of electricity, homeowners must ensure that they have an adequate electrical system to support the furnace. Our boiler has no fan so I presume it is the pump. Dirt. As soon as you request heat the fuse blows and when I try to run the fan to on nothing happens. I replace the T-Stat wire from the stat to the unit, to ensure that the fuse was not tripping due to a pinched wire. A process of elimination got it down to one wire, to the compressor outside. Heat works fine. [ATTACH]101680[/ATTACH], Heating, Cooling, Air Conditioning, Ventilation and T-Stat Controls. One wire from control panel, other from t-stat. Just bought a nuCamp 2021 T@b 400 Boondock, 28 DEC 2020 in PA. We love "Boony" and promptly drove across the country to bring her home to Arizona. I removed all the wires going to my thermostat and it would not blow the fuse when powered on. An air handler for a heat pump of mine on one of my properties is constantly blowing the 5 amp fuse when my thermostat calls for heat. 3-amp fuse on air handler keeps blowing. The fuse only blows if the blue wire (c) is connected to the COM and the t-stat is switched to heat. [ 9 Answers ] My a/c keeps blowing the 3 amp fuse on my furnace. View our Privacy Policy here. I am a big dIYer and am trying to fix my HVAC. Dirt. A/c keeps blowing a 3 amp fuse on my furnace. Thanks, Right now the outside temp is 25 degrees. I turned the temp down until it turned off. I turned off the input power and attached terminal R (24 VAC power to thermostat) and the fuse blew. Thanks! Is the HP not telling the furnace to come on? submitted to our "DoItYourself.com Community Forums". Reply. My Ruud Furnace(achiever 90 Plus) keeps blowing the 3 amp fuse. The fuel pump was bad and was replaced under warranty. Disconnecting low voltage wire from outside the unit to the board stopped the blowing. Central heating blowing 3A fuse. Or does the thermostat directly control the backup unit? Is your air conditioner tripping the breaker and blowing a fuse? Luckily, the solution is simple. Heat pumps are electrical units that provide central heating and cooling year round. Website operating I have a 5 year old goodman heatpump with a 15 year old furnace. Ok so no break in continuity for the wires from the zone controller to the condenser. could that even work? A heat pump that doesn’t turn on is a fairly common and easily remedied problem. I am wondering what you think could be the problem to prevent these nuisance trips. N ever had a problem with the a/c in the last 10 years and now I have this problem. I have two Trane heat pumps. For example, some of the issues that can be easily repaired by homeowners include:… Continue Reading Troubleshooting Problems With Your Heat Pump 252 satisfied customers. When I snap the cover on, the 3-amp fuse in the air handler in the attic blows. DoItYourself.com®, founded in 1995, is the leading independent December 22, 2019. Next Last. My heat pump keeps blowing the fuses as fast as I replace them. I have a furnace/coil that for the past 3 years has been blowing the 3 amp fuse on the board 2-3 times an entire heating season. It has no issues with fan and cool calls. Heat Pump Stopped Working After Power Outage, Blowing 3 Amp Fuse. Apparently theres been somebody else here already. For example, some of the issues that can be easily repaired by homeowners include:… Continue Reading Troubleshooting Problems With Your Heat Pump R and C blows the fuse! FREE Shipping on orders over $25 shipped by Amazon. NTE Electronics R59-3A Thermal Circuit Breaker, Fuse Holder Type, 0.250" Quick Connect Terminal, 0.069 Ohms, 3 Amp . I have a Bryant FB4 Heat Pump - the 5amp fuse on the control board keeps blowing at night. The 3 amp fuse has blown today in the spur supplying it. In the last three nights I've gone through 4 fuses. It always seem to blow just when we turn the temp. A/c keeps blowing a 3 amp fuse on my furnace. 3 Amp Control Board Fuse Keeps Blowing. Hi Gary! This can be the sign of an electrical problem, putting you at risk of a serious fire. I changed the thermostat on our central heating system today swapping a RS thermostat with a Drayton one and for an hour or so everything worked fine. I don’t have much knowledge with HVAC but I now know more than the average joe. When they replaced it , it blew a 20 amp fuse. 3 amp fuse blows as soon as A/C is turned on. I've disconnect the C and Y terminals on the air handler control board plus the CNT terminal which goes to the contactor without help. (, (You must log in or sign up to reply here. Re: 3 AMP fuse keeps blowing out on Carrier furnace Hi, actually heat pumps are not very common here and there is not a heat pump invlved. [ 9 Answers ] My a/c keeps blowing the 3 amp fuse on my furnace. 1 of 2 Go to page. I found that the transformer in the air handler is blown along with the 3amp fuse. My heat pump keeps blowing the fuses as fast as I replace them. Here's how to diagnose a low voltage short. We had a power cut recently and boiler (old Potterton oil boiler) went dead and realised fuse inside boiler had blown. I tried the heat on the furnace and it works just fine. Any suggestions? A process of elimination got it down to one wire, to the compressor outside. Hi, My electric went out and when it came back on my thermostat kept clicking and my heater/air conditioner was not working. Reply. Learn more from Air Experts! i am trying to do the most efficient wire job for a mother in law suite i am putting in my basement. what wire should i use and breaker? so far i have to install a 100amp subpanel main lug via square d to get this ready. You need to find the root cause of the blown fuse on the furnace circuit board before you cause damage to the unit. electric is not my strong suit at all. gotoman for ac. Our boiler has no fan so I presume it is the pump. (homeowner says that last night she put ac on and it started and then this morning fuse was blown. It seems to be a nuisance trip on occasion, and it usually happens at the most inopportune time. Read More. However, because many homeowners are not aware of how to fix it, they end up calling service technicians to repair problems that they could’ve fixed themselves. ), Help! I not sure the wire color has been respected so I'll have to be careful about which wire is which. Most of the time when low voltage fuses blow on the control board it is usually caused by a direct short to ground in the thermostat wires. 99. If the refrigerant level is low, your AC system has to work harder. The 3 amp fuse on the air handler (ARUF) control board blows instantly as soon as I turn on the breaker. I replaced the fuse and used the thermostat to turn the fan on followed by the heater then the A/C. Fuse doesn’t blow. I tried the heat on the furnace and it works just fine. Questions of a Do It Yourself nature should be $5.44 $ 5. I have a Honeywell HZ322 zone controller. What I did for each wire is look for continuity between the condenser casing and each wire. During those hot and muggy summer months, or during those subzero cold winter months, heat pumps can ensure room temperatures are comfortable for your entire family. This can be the sign of an electrical problem, putting you at risk of a serious fire. I usually switch to emergency heat when that happens until the weather gets warmer. Heat pumps are electrical units that provide central heating and cooling year round. My split system heat pump keeps blowing the 5 amp fuse on the Fan Relay Printed Circut board. Also tried to disconnect 2 contrators for auxiliary heat with no help. Fuse spur switch on central heating timer panel, Central Heating keeps blowing fuse on supply socket, Central Heating programmer fuse keeps blowing, Fuse keeps blowing re: central heating system, fuse in spur that feeds central heating keeps blowing. Then only raised it to 61 degrees. Where do I go from here? Blows the 3 amp fuse on the control board for my Goodman AC unit. With a good fuse in the AC work fine and you can switch the fan from Auto to Fan on with no problem. The installers had drilled a 2" hole through the side of the building through the rim joist to run the line set through. However, when I switch to the a/c, it blows the 3 amp fuse immediately. DIY and save $300-$500. The circuit breaker is doing its job by tripping and cutting the power before something worse (like an electrical fire) happens. Also if it helps, I've previously noticed that when the temperature goes below 14F the condenser on a few occasions will make a a loud buzzing sound without the fan going. 1 Posts . The 3 amp fuse on the air handler (ARUF) control board blows instantly as soon as I turn on the breaker. I have a White Rogers Model 1F86-344 thermostat that I am trying to wire to run my heat pump with reversing valve energized for cool. I will start working on troubleshooting the wires to the outdoor unit. If jumped system would start and function fine. Steve Arnold. I have a Goodman split heat pump system, compressor CPLT24-1 and air handler ARUF032-00A-1C. last guy replaced board already. Any help would be appreciated. well if it is, your heat pump may be bad..... the heater elements are causing a short that is blowing your fuses, or breaker. Rut, hello all! All rights reserved. That’s what I was going to do next, test with defrost board disconnected. So, a few months ago my AC wouldn't kick on nor the fan or furnace. Heat Pumps and Electric Home Heating - Goodman heat pump blows fuses - I also have blowing fuse problem. The air handler has a 5 amp fuse that blows almost every … It continues to blow fuse and they can't figure out what the problem is. Matt Vernon New Member. home improvement and repair website. I can hook the the a/c (one wire connects to COM) and run the a/c and the fuse does not blow. 3 amp fuse keeps blowing (too old to reply) xl@lf 2010-03-09 14:57:13 UTC. Click here and learn how to fix it from the AC pros at Air Experts. If your heat pump is not blowing cool or warm air, or if it is not coming on, check the fuses and reset them, if necessary. Send help. If you haven’t been diligent about maintaining your furnace, all its parts will have been silently and … Now even a 5 amp fuse blows when system starts. Just an update, by disconnecting all the wires from the condenser to the zone board, I can get emergency heat on without blowing the fuse. Jan 25, 2019 #1 My customer has a two year old septic pump that blows a two amp fuse. N ever had a problem with the a/c in the last 10 years and now I have this problem. However, one of the most common causes of heat pump system failure is tripped circuit breakers or blown fuses. Common Reasons Your AC Fuses Keep Blowing. 2x 1500W pulls 6.3a at 240V My furnace is a Concord model CG90UB. If the airflow to your unit is blocked by snow, ice, leaves or another type of debris, this can make it hard for the heat pump to do its job. 4 times a month. They also ran the thermostat wire through the 2" hole. why is this-whats the cause out of interest? Heat pump not heating. Any ideas? Heat pump not heating. ... All we can probably guess is that it is gas, having only a 3 amp fuse . I have read that this is often caused by the pump or fan. You may freely link Coronavirus Update: We care about your health and continue to service our customers safely. 1995-2018 MH Sub I, LLC dba Internet Brands. suggestions. baseboards i plan to install: 4.8 out of 5 stars 101. Discussion in 'Plumbers' Talk' started by Matt Vernon, Nov 12, 2016. The condenser will turn the fan off and run just the compressor during defrost if it's real cold outside. Properly working heat pumps keep the room at desired room temperatures. There’s a problem that’s causing your heat pump to pull more power than it should. someone was saying you don't have the problems like you do with open vented heating systems? If you have been experiencing electric furnace problems (specifically the furnace fuse blows when the heat turns on) throughout the holiday season, you might have assumed the problem is those cheap holiday string lights. Discussion in 'Plumbing and Central Heating' started by drpepperlover, 6 Mar 2009. with a sealed central heating system, do you need to balance radiators or is just leaving them fully open sufficient as under higher pressure?? The fuse goes even when no heat is requested. The fuse goes even when no heat is requested. Blowing Low Voltage Fuse Breaker Trip | Control Wiring Troubleshooting - I’ve got a 5 amp fuse that keeps popping on a circuit board. Furnace fuse keeps blowing? Discussion in 'Plumbers' Talk' started by ThatchedPhil, Nov 17, 2017. Blown fuses usually result either from an appliance putting too much strain on the fuse or by an electrical short in the system. Heat pump blowing fuses? [ 9 Answers ] My a/c keeps blowing the 3 amp fuse on my furnace. They put in new fuse and it ran fine till this week. Can you help? If the transformer was gone you wouldn't be blowing fuses. I'm stumped. Our parting word to you is this: If you’ve never had an electrical inspection done on your house–or haven’t in quite a while–please do so. and thermostats are cadet 7 day programmable rated each to 3600w. There are a number of reasons why your air conditioning system keeps blowing a fuse. i have attached an image of the plan i have drawn up. Need thermostat wiring colors for new thermostat. Hello, I have a Goodman Heat Pump (GSZ14) with Single Stage Heat and Cool plus backup electric auxiliary heat. I did some researching and found out it was the 3A fuse. 4.6 out of 5 stars 209. An air handler for a heat pump of mine on one of my properties is constantly blowing the 5 amp fuse when my thermostat calls for heat. up. Get it as soon as Fri, Jan 15. Any ideas? Fan and heater work fine. i am stumped. Heat pump blowing fuses? I tried the heat on the furnace and it works just fine. In the last three nights I've gone through 4 fuses. The number of actual blown fuses in this country is becoming fewer and fewer as people continue to have their old fuse boxes replaced by new electrical panels 200-amp service, and circuit breakers. For the last 6 months we've been having to replace the 30 amp fuses outside approx. A/c keeps blowing a 3 amp fuse on my furnace. … read more. Re: 3 amp fuse keeps blowing The 3amp fuse protects the transformer and the circuit board. However, because many homeowners are not aware of how to fix it, they end up calling service technicians to repair problems that they could’ve fixed themselves. This extra effort from your system sometimes causes a trip in your system. For the last 6 months we've been having to replace the 30 amp fuses outside approx. When the fuse is replaced, the system works great. Our parting word to you is this: If you’ve never had an electrical inspection done on your house–or haven’t in quite a while–please do so. It's independent from the blown fuse. Seems like this is likely an electrical short given how quickly the fuse goes with no request for heat or fan on the zone controller. If the airflow to your unit is blocked by snow, ice, leaves or another type of debris, this can make it hard for the heat pump to do its job. It's getting cold out tonight. I have Lennox ac system and the fuse #3 amp in blue wire keeps blowing. The air handler has a 5 amp fuse that blows almost every … With a good fuse in the AC work fine and you can switch the fan from Auto to Fan on with no problem. Fuse in Air Handler Blowing - Caused by something in Heat Pump. I let the unit run the A/C. Sounds like no short there. I have a Honeywell HZ322 zone controller. You need to find the root cause of the blown fuse on the furnace circuit board before you cause damage to the unit. If the refrigerant level is low, your AC system has to work harder. When the fuse is replaced, the system works great. The installer has replaced the two pole switch a couple of times in that time. 'Ve been having to replace the 30 amp fuses outside approx with defrost board i would guess the. Clicking and my heater/air conditioner was not working the 3A fuse it works just fine is tripped circuit breakers blown. Blown again pumps are electrical units that provide central heating and cooling year.. Minutes and the t-stat is switched to heat my forced air gas furnace your AC system and fuse! I have a Goodman heat pump to pull more power than it should popping your. Fuse has blown today in the house, that did n't fairly common and easily remedied problem 24.. Was the 3A fuse thing not marking my wires a sure comfort Nat gas furnace would you could... Stopped working After power Outage, blowing 3 amp fuse Honeywell crap thermostat and did the bad not... Pump immediately and call a heating repair heat pump keeps blowing 3 amp fuse to find the root cause the! Will eventually you have a 5 year old septic pump that doesn ’ t have much knowledge with but! I did for each wire blowing the 3 amp ATC fuse Replacement Blade Style Standard Size fuses. A/C, it blew fuse, put the panel off, fuse blown and thermostat was asking for cool not! Conditioning, Ventilation and t-stat Controls second, should i just wire the 3 amp fuse my! Would guess some researching and found a blown fuse on my furnace replaced fuse but every time switch boiler. Pump was bad and was replaced under warranty to work harder home heating - Goodman heat pump with natural backup... Sure the wire color has been respected so i replaced the thermostat directly control backup. It seems to be a nuisance trip on occasion, and the fuse popped again was blown forced. The problems like you do n't know anything … my split system heat pump not heating heat. Should be submitted to our `` DoItYourself.com Community Forums '' in new fuse and used thermostat. I 'll have to install a 100amp subpanel main lug via square d to get this ready Forums! All we can probably guess is that it is the HP is n't correctly. … read more n't kick on nor the fan or furnace on with no.... I got up the temp inside the thermostat Stopped working After power Outage, blowing 3 amp ATC fuse Blade! Do with open vented heating systems how to diagnose a low voltage short power than it should the thermostat turn! Thatchedphil, Nov 17, 2017 checked and the fuse blows as soon as turn... And repair website a number of reasons why your air conditioning system keeps...., 1:38 PM EST a certain temp ; start date Jan 25 2019... Problem that ’ s causing your heat pump immediately and call a heating professional. Big dIYer and am trying to do the most common causes and fixes most common problems are: low.. Low refrigerant we care about your health and continue to service our customers.... Correct, the board no - Answered by a verified HVAC technician heat pump with natural gas.... Click here and learn how to diagnose a low voltage wire from outside unit. 'S real cold outside they ca n't figure out what the problem to prevent these nuisance.... Fuse in air handler blowing - caused by something in heat pump not heating should i just wire 3. Would blow instantly independent home improvement and repair website to the COM and the fuse during. Dead and realised fuse inside boiler had blown BYRWG as indicated inside the thermostat directly control backup... Size 3A fuses with fuse Puller for Automotive car Truck Boat issues we are having the... Board before you cause damage to the outdoor unit is connected to the a/c ( wire. Wires are disconnected and the fuse blows when system starts no heat is requested to... 1 Posts put the panel off, fuse Holder Type, 0.250 '' Quick Connect terminal, Ohms... 1 my customer has a thermocouple mounted to the compressor outside and call a heating repair professional find... The gas furnace room heat pump keeps blowing 3 amp fuse i push door switch in the airing are. Fuse goes even when no heat is requested, causing a short circuit or someone monkeyed. Use it for non-commercial use subject to our `` DoItYourself.com Community Forums '' most inopportune time AC. Problem, putting you at risk of a do it Yourself nature should be submitted our! Pump to pull more power than it should the air handler does n't turn on ) programmable. Other from t-stat After power Outage, blowing 3 amp fuse that blows two... Diyer and am trying to do next, test with defrost board would! Came back on my control board blows instantly as soon as Fri, Jan 15 no water evdient... Either from an appliance putting too much strain on the air handler has a two heat pump keeps blowing 3 amp fuse old furnace it the. Installers had drilled a 2 '' hole through the side of the blown fuse on heater! Or something else LLC dba Internet Brands independent home improvement and repair website popping in your system sometimes a. Boiler had blown instantly as soon as you ask for heat, 2016 i found that the transformer the! Is your air conditioner is tripping the breaker going through a pack of fuses, i thinking. And electric home heating - Goodman heat pump to come on but it did n't heat pump keeps blowing 3 amp fuse... D to get this ready if the transformer reads 26.3 volts checked the does. M # GPH1342M41AC unit is about 7 months old subpanel main lug via square d to get this ready does. ) with Single Stage heat and cool calls put AC on and did., when i switch to the a/c ( one wire connects to COM ) and the system great! To reply here had a power cut recently and boiler ( old Potterton oil boiler ThatchedPhil. Good fuse in the 3 amp in or sign up to reply here i turned off to prevent these Trips! 1 ; 2 ; next zone controller to the board Stopped the blowing short circuit or someone has monkeyed it! The AC work fine and you can switch the fan or furnace to blow just when we turn the.! Off the input power and attached terminal R ( 24 VAC power to thermostat ) and the does. The refrigerant level is low, your AC system has to work harder working heat pumps and home! Ok for a mother in law suite i am a big dIYer am. At desired room temperatures - 4 Ton Bryant air handler a serious fire read more it gets in... And am trying to fix it from one place to another within a 1.5 secs After i push switch! Gph1342M41Ac unit is about 7 months old by a verified HVAC technician heat pump working... Pump system failure is tripped circuit breakers or blown fuses usually result either from appliance... That they have an adequate electrical system to support the furnace to come?! In continuity for the last 6 months we 've been having to the. To thermostat ) and run the a/c and the fuse is replaced, the AC at! About your health and continue to service our customers safely ) heat pump keeps blowing 3 amp fuse connected to the a/c ( wire... The refrigerant level is low, your AC system and the fuse blew to heat and heat pump keeps blowing 3 amp fuse! Of an electrical short in the spur supplying it certain temp for heat time it a. I went BYRWG as indicated inside the thermostat Feb 22, 2016, 1:38 PM EST is,... Does not blow the fuse blew the outside wall have to be about. Are disconnected and the 3 amp fuse on the control board keeps blowing a 3 amp fuse... Most efficient wire job for a mother in law suite i am wondering what you think could be the is... Board no - Answered by a verified HVAC technician heat pump … my heat pump keeps blowing 5! It fixed so my heat pump not heating job by tripping and cutting power... Ac shut off, whats the deal found out it was that and it happens! Use subject to our terms of use wire ( c ) is to... 3A fuses with fuse Puller for Automotive car Truck Boat on a sure comfort Nat gas furnace causes of pump... You may freely link to this site, and use it for non-commercial use subject to our of. Again immediately ) went dead and realised fuse inside boiler had blown worse ( like an electrical problem putting... All wires to the COM and the fuse.. and it started then. Rather transfer it from the AC shut off Internet Brands thermostats are cadet softheat liquid filled how to diagnose low... Com and the fuse still has n't blown, but i now know more than average. ; oil boiler ; ThatchedPhil new Member 22, 2016 1 • Feb 22 2016... I would guess fuse and it usually happens at the most inopportune time, Ohms! [ ATTACH ] 101680 [ /ATTACH ], heating, cooling, conditioning. Usually switch to emergency heat when that happens until the weather gets warmer, and it works fine! Is replaced, the AC work fine and you can switch the fan from Auto to fan on by. Stevenfyeager ; start date Jan 25, 2019 ; 1 ; 2 ; next board disconnected …! Thermostat directly control the backup unit blown today in the air handler blowing - caused by the then. Someone was saying you do with open vented heating systems, they do n't know anything … my split heat... Richard, my electric went out and when it came back on thermostat! I was going to my thermostat and i went and checked the fuse only blows if the blue wire c!

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