They can come loose over time due to the natural vibrations of the unit, so make sure to check the connections. The fuses on the furnace tend to be relatively low voltage, ranging from three to five amps. I have replaced the thermostat and checked all the wires. If you haven’t been diligent about maintaining your furnace, all its parts will have been silently and steadily collecting debris and dust. Goodman Gas Furnace Wiring Diagram Gmp050 3 ideas for your inspiration. Previously only blew when the fan switch was turned ON. When testing the external unit 24VAC leads for short it comes as being … Heating & Air Conditioning Expert : Jan 10, 2010, 03:15 PM Usually the fuse blowing is due to a short circuit in the low voltage wiring or a defective component. I took a look online and someone said to check if the furnace board fuse blew…and it did. It works fine except: When leaving the thermostat at a constant temp. It's a goodman furnace. $9.95 $ 9. 365 day right part guaranteed return policy. Loose wires, in general, are often responsible for blown fuses. The first time I discovered the burned fuse and replaced it. I checked, and my Ecobee was off. I ended up replacing the thermostat and wires as well and now the AC side works perfect but when it is changed to heat it blows the 3 amp low volt fuse and heat will not work. 4.7 out of 5 stars 23. Before you call in the professionals, you might have some of the more common issues that will be easy for you to work on yourself. Heat worked fine last winter and never used the unit at all from about June to October and then when I tried turning it on in October got nothing. I took off all the wires of the dummy board and jumped out r & W furnace turned on fine but as soon as I put on the wires for the condensor on Y & C fuse blew again I checked the 2wire running … … This is the exact type of fuse on my Rheem AC circuit board. 4.9 out of 5 stars 51. 3 Amp fuse keeps blowing. When I was first wiring the PEK from the Ecobee3, I did notice there was only one "G" wire to control the furnace fan which I found very odd. Repair your Goodman Fuse, Thermal Fuse & Breaker for less. Nothing happens. 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 is designed to protect the system from a potential short or overload. 3. (homeowner says that last night she put ac on and it started and then this morning fuse was blown. I suspect a fuse that small is in the 24vac circuit and is used to protect the control module. I need help. After another days use the same thing has happened. Common Reasons Your AC Fuses Keep Blowing. 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. Why You Might Need Goodman Furnace Troubleshooting. I replaced it and a half hour later it blew again. It has no pilot light, and the thermostat is blank. I let the unit run the A/C. The furnace is horizontal Goodman and is located in the attic. 10 Customer Reviews. 5 (8) 4 (2) 3 (0) 2 (0) 1 (0) Verified Purchase (0) Sort By: HomeDepotCustomer. Conext Link ATC3-25 ATC Fuse 25 Pack (3 Amp) 4.7 out of 5 stars 69. I live in California in an area that doesn't really need A/C so all I have is a gas furnace for heat (York Diamond 80). What can I do hvac1000 Posts: 14,540, Reputation: 435. I have been having a problem with the control board fuse blowing out on an older Carrier furnace with standing pilot. Help diagnosing AC! A faulty transformer or a malfunctioning thermostat wire can all be common culprits for fuses that continue to blow. $6.19 $ 6. It is a Goodman furnace. Something is shorting to ground. I have a blown fuse on the control board. I have a two year old Goodman Model GPC1242H41CA package unit that has heat strips, I had a short that eneded up causing me to replace the transformer and the control board. And what about the pilot light? Find Goodman Fuse, Thermal Fuse & Breaker Parts at RepairClinic.com. Even a need for a part shouldn’t discourage you because almost anyone can figure out some … Why did this happen? Already changed out the 120 to 24v transformer. I did some researching and found out it was the 3A fuse. If you find that your fuse is blown due to any of the above-mentioned conditions, you will have to buy a new one and replace it. Eventually diagnosed that the 3AMP Fuse had blown on the furnace. Can this 3 amp fuse be used in an a.c. unit for thermostat circuit board Asked by alysha April 5, 2017. Eventually, the utility company replaced the (ancient) transformer and restored power. Usually it is the thermostat wire but it could be any component or wire on the 24 volt side of the transformer. There was a big black mark in the middle of the 3 amp fuse. I checked the control board fuse, and it was blown. So far, I've used a multimeter to test the 24V transformer, AC unit capacitor and conductor; they are all good. As the title states, I have a blown 3 amp fuse on the control board located in the air handler. Understanding Goodman furnace troubleshooting and 80 percent of the failures can help you with your furnace. My furnace is a Concord model CG90UB. After reading some other posts, I … Answers. There are a number of reasons why your air conditioning system keeps blowing a fuse. Protactor Yellow Furnace Fuse 5 Pack Blade Type ATC5 5 Amp Replaces Rheem Ruud 44-ATC5. Took the panel off, and the fuse was blown again. Sometimes, the blown furnace fuse is simply a sign of a much larger issue with the furnace. The whole system shuts off after a night of use. So, a few months ago my AC wouldn't kick on nor the fan or furnace. I just had a newer a/c installed and it continuously runs even when the thermostat is turned … So I replaced the fuse, put the panel back on, and it didn't turn on. … 4.7 out of 5 stars 23. No power between R and C (Com) on my control board. After a while the A/C turned off. Discussion Starter • #1 • Nov 16, 2019. Noticed the 3A Fuse was blown...replaced it and taped down the switch thats on the front of the unit. I replaced the fuse and used the thermostat to turn the fan on followed by the heater then the A/C. Get it as soon as Thu, Dec 24. 3 Amp Control Board Fuse Keeps Blowing. This extra effort from your system sometimes causes a trip in your system. 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. I have a Goodman GMP050-3 furnace that started blowing the 3 amp fuse on the circuit board when the thermostat is turned on. Jump to Latest Follow 1 - 5 of 5 Posts. Contractor's Assistant: Did you double-check the thermostat? The fuse that is blowing is the 3 amp control board fuse. I removed all the wires going to my thermostat and it would not blow the fuse when powered on. I began checking for shorts on the 24v system and accidentally broke the limit safety switch at the furnace vent area. All are about 2-3 years old. AC: Goodman CLT36-1B (approx. The tstat indicated a connection issue; I opened the furnace and noticed the 3A fuse was blown. 19. The voltage out of the transformer reads 26.3 volts. Now the fuse blows whenever a/c or heat is selected (and temp adjusted). It is very simple to replace a fuse wire in a furnace. It has a 3 amp fuse in it. I was blowing the 5 Amp fuse on the control board for my forced air gas furnace. When dropping … Checked it and the 3 amp fuse in the control board area was blown. HVAC_Marc. I have a Goodman furnace/AC unit that went out a few days ago. Fast, same day shipping. If the refrigerant level is low, your AC system has to work harder. All works ok until when I connect the control wires for the AC to the board (those 2 wires go to the AC contactor B136-3-21. 4.8 out of 5 stars overall. Dirt. I turned off the input power and attached terminal R (24 VAC power to thermostat) and the fuse … With that, I suspect your control module might be bad or even the thermostat or bad/shorted wiring between the thermostat and the furnace. I do not know what else they may have done, as I was at … The heater worked fine during the winter. Gas Furnace Thermostat Wiring Diagram, I saw on wiring diagram a 3 amp fuse on secondary side of 120v to 24 volt transformer can anyone tell me where it is View Profile View Forum Posts View Forum Threads Professional Member* Join Date Mar 2013 Location Billington Heights, NY Posts 21,625 Post Likes . When the electrician on site called me earlier he said he was getting 123 to the outlet. Get it as soon as Fri, Jan 15. Blowing Low Voltage Fuse Breaker Trip | Control Wiring Troubleshooting - I’ve got a 5 amp fuse that keeps popping on a circuit board. FREE Shipping on orders over $25 shipped by Amazon . Problem: Furnace, air conditioner heat pump will not come on. $9.95 $ 9. Get it as soon as Thu, Dec 24. The power was off for several hours. Can you help? Switch off the electrical circuit. Arrives before Christmas. I have a 9 year old 3 Ton Goodman central heating and cooling system. This is a split unit with a remote heat pump outside. If you were to add too many accessories onto your transformer, the furnace fuse protects the unit from serious damage. 19. $4.19 $ 4. Now that you know how to identify a blown fuse, you will need to replace it. The unit was off and the 3 amp fuse was blown. To me, a 3 amp fuse is not very big. Have found no dead shorts in the wiring, including the AC unit outside. The schematic doesn't give me the info I need to know in what circuit that fuse is actually located. Solution: Use a Volt Ohm meter. When the furnace went out, I checked the circuit board and noticed I was getting code #24; "secondary voltage fuse is open - check for - short circuit in secoundary voltage wiring (24 VAC) wiring". Discussion Starter • #1 • Jan 7, 2011. I am still popping fuses and reading over 24 volts. That night the furnace (goodman gmv81155cxa) stopped working. OneTrip Parts Violet Furnace Fuse 5 Pack Blade Type ATC3 3 Amp Replaces Rheem Ruud 44-ATC3. Any ideas why the 15 amp fuse for the furnace in my TT camper blows every time the furnace kicks on? furnace model# 58GFA120-LC. I can hook the the a/c (one wire connects to COM) and run the a/c and the fuse does not blow. How to Replace a Blown Fuse on a Furnace. there is no problem, calls for heat and the furnace satisfies it just fine. We have a 1993 Goodman 92% gas furnace (no central air). Well tonight, randomly, the ac shut off. Jim 1994 Sierra by Cobra 32' 2016 GMC Sierra 1500 Crew 4wd All-Terrain 2004 Chevy Avalanche 1500 Z71 2002 Triton SL8 1994 Triton Elite 14-98 2015 Polaris Sportsman 1000XP EPS … Hey All, I moved into my house a few months back and the HVAC had been working great up until this weekend. I was troubleshooting a furnace the 3amp fuse blew on the board so I figured there should be a short somewhere? I've got an Amana 93HQ furnace, a Goodman CKL36-1L AC unit, and a Robertshaw (unk model) digital thermostat. Furnace Control Board: HK42FZ013. Several days ago, we lost power to my house during an electrical storm. FREE Shipping on orders over $25 shipped by Amazon. I checked and the furnace was off, fuse blown and thermostat was asking for cool. uxcell Car Blade Fuse 3A 3AMP Auto Fuses Caravan Purple 10 Pcs. We moved into our new house on Friday. Yesterday, I walked by my ecobee and noticed that it had no power to it. Its a 1994 Sierra 32' TT with the original Suburban SF series furnace. the fuse only blows because the load … 3 Amp Fuse Blowing I was wondering if anyone could help me out here. 95. 95. Last summer I had replaced the fan motor, compositor on the condenser. (Goodman ARUF48D14AC air handler and VSZ140421AA heat pump) On the chance it was just a bad fuse, I replaced it and it blew again after approximately 3 mins of air handler and condenser operation. Only 8 left in stock - order soon. 248 Posts . Everything was working fine until I heard the A/C come on and heard a pop. 5 Years Old) Issue: Constrol Board on the Furnace keeps blowing 3 Amp Fuse (So far it has blown 4 Fuses during this problem). The fuse only blows if the blue wire (c) is connected to the COM and the t-stat is switched to heat. Carrier blown 3 amp fuse troubleshoot. I have a goodman gas furnace that blows the 3 amp fuse on the control board instantly. So I went and checked the fuse.. and it was blown. Every time it gets replaced it blows once turned on. Customer Reviews. $1.81 shipping. Thinking that the fuse was on the dc circuit going up to the thermo I inspected that wiring and there were rubs through the wire sheath and nicks all over where someone had stapled it along the beams. thanks in advance for your help. They make resettable fuses in 3 and 5 amps called poppers. So I replaced the whole run from thermo down to furnace. 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Ny Posts 21,625 Post Likes not very big Type of fuse on the furnace volts. Short or overload board for my forced air gas furnace that blows the 3 amp ) 4.7 out the... Fuse was blown when leaving the thermostat or bad/shorted wiring between the thermostat and it started then! Bad or even the thermostat does not blow your control module understanding Goodman troubleshooting! They are all good, so make sure to check if the blue wire ( )... System and accidentally broke the limit safety switch at the furnace percent of the 3 amp fuse blowing i wondering... Did some researching and found out it was blown again to Latest Follow -... For blown fuses so i goodman furnace blowing 3 amp fuse it blows once turned on whole shuts... Can come loose over time due to the outlet we have a Goodman GMP050-3 that. Ruud 44-ATC3 add too many accessories onto your transformer, AC unit capacitor conductor! Connection issue ; i opened the furnace was off, and the thermostat blank! 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