Noticed the 3A Fuse was blown...replaced it and taped down the switch thats on the front of the unit. I turned off the input power and attached terminal R (24 VAC power to thermostat) and the fuse … … 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. 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. Get it as soon as Thu, Dec 24. Its a 1994 Sierra 32' TT with the original Suburban SF series furnace. $9.95 $ 9. 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 … FREE Shipping on orders over $25 shipped by Amazon. I have a 9 year old 3 Ton Goodman central heating and cooling system. Eventually diagnosed that the 3AMP Fuse had blown on the furnace. 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. Get it as soon as Thu, Dec 24. It has a 3 amp fuse in it. Contractor's Assistant: Did you double-check the thermostat? 4.7 out of 5 stars 23. Jump to Latest Follow 1 - 5 of 5 Posts. I suspect a fuse that small is in the 24vac circuit and is used to protect the control module. The unit was off and the 3 amp fuse was blown. Answers. … I am still popping fuses and reading over 24 volts. Repair your Goodman Fuse, Thermal Fuse & Breaker for less. The voltage out of the transformer reads 26.3 volts. Why You Might Need Goodman Furnace Troubleshooting. This is the exact type of fuse on my Rheem AC circuit board. 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. 5 Years Old) Issue: Constrol Board on the Furnace keeps blowing 3 Amp Fuse (So far it has blown 4 Fuses during this problem). I was troubleshooting a furnace the 3amp fuse blew on the board so I figured there should be a short somewhere? Overall Ratings. 5 (8) 4 (2) 3 (0) 2 (0) 1 (0) Verified Purchase (0) Sort By: HomeDepotCustomer. I let the unit run the A/C. 19. I checked, and my Ecobee was off. Can you help? Arrives before Christmas. When dropping … I have a Goodman GMP050-3 furnace that started blowing the 3 amp fuse on the circuit board when the thermostat is turned on. It is very simple to replace a fuse wire in a furnace. It is designed to protect the system from a potential short or overload. 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. (homeowner says that last night she put ac on and it started and then this morning fuse was blown. Any ideas why the 15 amp fuse for the furnace in my TT camper blows every time the furnace kicks on? I do not know what else they may have done, as I was at … When testing the external unit 24VAC leads for short it comes as being … No power between R and C (Com) on my control board. Discussion Starter • #1 • Nov 16, 2019. 4.8 out of 5 stars overall. Common Reasons Your AC Fuses Keep Blowing. 95. I was blowing the 5 Amp fuse on the control board for my forced air gas furnace. I can hook the the a/c (one wire connects to COM) and run the a/c and the fuse does not blow. 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. Eventually, the utility company replaced the (ancient) transformer and restored power. 3 Amp Control Board Fuse Keeps Blowing. So I replaced the fuse, put the panel back on, and it didn't turn on. And what about the pilot light? View Profile View Forum Posts View Forum Threads Professional Member* Join Date Mar 2013 Location Billington Heights, NY Posts 21,625 Post Likes . The furnace is horizontal Goodman and is located in the attic. After another days use the same thing has happened. Checked it and the 3 amp fuse in the control board area was blown. Have found no dead shorts in the wiring, including the AC unit outside. there is no problem, calls for heat and the furnace satisfies it just fine. So far, I've used a multimeter to test the 24V transformer, AC unit capacitor and conductor; they are all good. 19. If you haven’t been diligent about maintaining your furnace, all its parts will have been silently and steadily collecting debris and dust. $1.81 shipping. The fuse that is blowing is the 3 amp control board fuse. We moved into our new house on Friday. uxcell Car Blade Fuse 3A 3AMP Auto Fuses Caravan Purple 10 Pcs. Customer Reviews. I've got an Amana 93HQ furnace, a Goodman CKL36-1L AC unit, and a Robertshaw (unk model) digital thermostat. Fast, same day shipping. I checked and the furnace was off, fuse blown and thermostat was asking for cool. So I went and checked the fuse.. and it was blown. It is a Goodman furnace. 365 day right part guaranteed return policy. $9.95 $ 9. They can come loose over time due to the natural vibrations of the unit, so make sure to check the connections. 3 Amp Fuse Blowing I was wondering if anyone could help me out here. That night the furnace (goodman gmv81155cxa) stopped working. Get it as soon as Fri, Jan 15. The tstat indicated a connection issue; I opened the furnace and noticed the 3A fuse was blown. 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 have been having a problem with the control board fuse blowing out on an older Carrier furnace with standing pilot. 4.9 out of 5 stars 51. The power was off for several hours. 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. I have a goodman gas furnace that blows the 3 amp fuse on the control board instantly. They make resettable fuses in 3 and 5 amps called poppers. Blowing Low Voltage Fuse Breaker Trip | Control Wiring Troubleshooting - I’ve got a 5 amp fuse that keeps popping on a circuit board. I replaced it and a half hour later it blew again. I did some researching and found out it was the 3A fuse. $4.19 $ 4. It works fine except: When leaving the thermostat at a constant temp. Nothing happens. 100 % of customers recommended. After reading some other posts, I … Well tonight, randomly, the ac shut off. 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. I kept changing them until a tech came out. A faulty transformer or a malfunctioning thermostat wire can all be common culprits for fuses that continue to blow. 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. 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". Only 8 left in stock - order soon. 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. OneTrip Parts Violet Furnace Fuse 5 Pack Blade Type ATC3 3 Amp Replaces Rheem Ruud 44-ATC3. 10 Customer Reviews. Several days ago, we lost power to my house during an electrical storm. The whole system shuts off after a night of use. Every time it gets replaced it blows once turned on. What can I do hvac1000 Posts: 14,540, Reputation: 435. the fuse only blows because the load … Already changed out the 120 to 24v transformer. Conext Link ATC3-25 ATC Fuse 25 Pack (3 Amp) 4.7 out of 5 stars 69. furnace model# 58GFA120-LC. Carrier blown 3 amp fuse troubleshoot. Problem: Furnace, air conditioner heat pump will not come on. 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). Everything was working fine until I heard the A/C come on and heard a pop. If you were to add too many accessories onto your transformer, the furnace fuse protects the unit from serious damage. 2 days ago it began blowing fuses again, sometimes it would run for a little before blowing the fuse but never more than a few hours. If the refrigerant level is low, your AC system has to work harder. The heater worked fine during the winter. My furnace is a Concord model CG90UB. The fuses on the furnace tend to be relatively low voltage, ranging from three to five amps. (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. When the electrician on site called me earlier he said he was getting 123 to the outlet. It's a goodman furnace. This extra effort from your system sometimes causes a trip in your system. It has no pilot light, and the thermostat is blank. Understanding Goodman furnace troubleshooting and 80 percent of the failures can help you with your furnace. We have a 1993 Goodman 92% gas furnace (no central air). Goodman Gas Furnace Wiring Diagram Gmp050 3 ideas for your inspiration. As the title states, I have a blown 3 amp fuse on the control board located in the air handler. Even a need for a part shouldn’t discourage you because almost anyone can figure out some … Switch off the electrical circuit. All are about 2-3 years old. Something is shorting to ground. The first time I discovered the burned fuse and replaced it. I began checking for shorts on the 24v system and accidentally broke the limit safety switch at the furnace vent area. 248 Posts . Took the panel off, and the fuse was blown again. How to Replace a Blown Fuse on a Furnace. thanks in advance for your help. Some of the most common problems are: Low refrigerant. 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 replaced the fuse and used the thermostat to turn the fan on followed by the heater then the A/C. Solution: Use a Volt Ohm meter. After a while the A/C turned off. So, a few months ago my AC wouldn't kick on nor the fan or furnace. Loose wires, in general, are often responsible for blown fuses. Sometimes, the blown furnace fuse is simply a sign of a much larger issue with the furnace. I just had a newer a/c installed and it continuously runs even when the thermostat is turned … 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. Why did this happen? FREE Shipping on orders over $25 shipped by Amazon . Now that you know how to identify a blown fuse, you will need to replace it. I have a Goodman furnace/AC unit that went out a few days ago. Can this 3 amp fuse be used in an a.c. unit for thermostat circuit board Asked by alysha April 5, 2017. I checked the control board fuse, and it was blown. 3. To me, a 3 amp fuse is not very big. Help diagnosing AC! There are a number of reasons why your air conditioning system keeps blowing a fuse. The fuse only blows if the blue wire (c) is connected to the COM and the t-stat is switched to heat. 4.7 out of 5 stars 23. Yesterday, I walked by my ecobee and noticed that it had no power to it. 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 Previously only blew when the fan switch was turned ON. Furnace Control Board: HK42FZ013. Hey All, I moved into my house a few months back and the HVAC had been working great up until this weekend. The schematic doesn't give me the info I need to know in what circuit that fuse is actually located. 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 … HVAC_Marc. 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. 3 Amp fuse keeps blowing. Protactor Yellow Furnace Fuse 5 Pack Blade Type ATC5 5 Amp Replaces Rheem Ruud 44-ATC5. 95. I took a look online and someone said to check if the furnace board fuse blew…and it did. 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. Last summer I had replaced the fan motor, compositor on the condenser. This is a split unit with a remote heat pump outside. Dirt. I have a blown fuse on the control board. 01-25-2017, 11:53 PM #8. Now the fuse blows whenever a/c or heat is selected (and temp adjusted). So I replaced the whole run from thermo down to furnace. I have replaced the thermostat and checked all the wires. Find Goodman Fuse, Thermal Fuse & Breaker Parts at RepairClinic.com. $6.19 $ 6. I removed all the wires going to my thermostat and it would not blow the fuse when powered on. I need help. Discussion Starter • #1 • Jan 7, 2011. AC: Goodman CLT36-1B (approx. Ago, we lost power to it five amps Auto fuses Caravan Purple 10 Pcs do hvac1000 Posts:,! Blows if the blue wire ( c ) is connected to the COM and fuse! Night the furnace is horizontal Goodman and is located in the control board am still popping and... Is blowing is the exact Type of fuse on the circuit board Asked by alysha 5! Potential short or overload shouldn ’ t discourage goodman furnace blowing 3 amp fuse because almost anyone can figure out some … 's. Nov 16, 2019 if you were to add too many goodman furnace blowing 3 amp fuse onto your transformer, AC. 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