Question about Goodman GPC1342H21A Air Conditioner

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I have a fuse on a circuit board that is blowing immediately when I replace the emergency cutoff. The unit does not have to be in the on position at the thermostat. What should I do?

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Find the short in the tstast wiring

Posted on Sep 08, 2010

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Unit not working correctly. The unit worked for the winter, few days ago I turn on the AC and noticed that it wasn't cooling like it should.


It's could be the board or a heat relay. See if you have 24 volts on "x2" im assuming, emergency heat when in cool mode if so it's the board. Or unhook black or x2 or your emergency heat from board and run unit in cool. If heat stays on its a relay

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Fuse keeps blowing immediately when switching on the treadmill, why does this keep happening?


A fuse is designed to prevent excessive current from flowing into a circuit. If the latter is not protected by the fuse, the excessive current can either cause some serious damage or the excessive current can overheat parts and perhaps result in a fire.

So, you are drawing too much current and that explains the small plume of smoke you experienced. If an electric motor runs slow because of excessive friction or load, it will use too much current, overheat and burn out the windings. Disconnect the motor and attempt to run the unit with the motor disencumbered. If the new fuse does not blow, then the problem is with the drive mechanism. If fuse blows, the problem is with the electronics and not the motor.

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1 Answer

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If you have replaced the circuit boards it's probably associated with a wiring short circuit or compressor failure. Suggest you get a professional technician to further investigate the fault. In the interim check for a short to the frame of the unit, an internal light or for moisture issues or a condensation issue from water.

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1 Answer

Oster


Undo all the screws and remove the cover (assuming the power is unplugged). Look for any burned wires anywhere in the unit. examine the circuit board for overheated components or burned circuit traces. If all looks good test the thermal cutoffs (buttonlike devices where the wires come and go for safety). If they test ok for continuity then lastly check the fuse for continuity. If the fuse is blown replace the fuse. The likely culprit for the fuse blowing is the huge capacitor at the back. Replace it (and the magnetron if it has been sounding odd prior to the microwave quitting). Look inside the microwave for any missing paint where it may have been arcing. If the microwave has been arcing inside then dispose of it. If the main board is damaged replace or repair it.

Nov 09, 2013 | Microwave Ovens

1 Answer

My york heat and air unit with emergency heat is blowing 30 amp fuses and sparking at the fuses and contactor when turn main breaker back on. I have replaced contactor, transformer and the compacitor on...


You either have something wired wrong or you have a direct short in the system. Are you starting the A/C or the furnace? If it's the A/C, it could be a shorted compressor, capacitor, fan motor or it's wired wrong.

Oct 30, 2013 | Heating & Cooling

1 Answer

Goodman furnace GMT115-5B Turn fan to on on


Bypass the tstat first but that's where I'd be leaning.

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My compressor stoppped running. i found a burned out fuse inside. i've replaced the fuse. the fuse was labeled 3a250v. thats what i replced it with. when i turn it on the fuse blows immediately. on some...


Every time I connect my Campbell & Hausfeld fp200300av Compressor and push the power on, the fuse blows. Even if I disconnect the motor from the circuit board the fuse continues to blow. Then I extracted the Rectifier-diode (the black and square with a hole electronic with four stands part).
This piece was the reason of the short circuit, I replace it with an equivalent one and I accomodate it to the right terminals in the circuit board. My compressor works flawlessly again!

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2 Answers

DeWalk DC500 wet/dry vaccum doesn't work


Vacuum works with the battery but does not work with 120 volt. Every time I plug it in it blows the internal fuse. I have replaced the fuse inside the vaccum several times and every time i plug it in it blows. What do you think it could be?

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1 Answer

3 amp fuse blows after three hours on Goodman 4 ton 16 seer pump


I would suspect you have a problem in the defrost circuit of your heat pump. there are a couple of things you can try. first just run the system on emergency heat and see what happens. you could have a defrost board that is shorting when it kicks into defrost. it sends a signal back to the furnace so it will come on during defrost. if you do not blow a fuse as long as you are running in emergency heat, i would suspect the defrost control board. also you could have a dead short in the wire that runs from the "w" terminal on furnace control board, out to the heat pump. keep in mind that any of the wires could be the cause and i am just tying to give you the most common things. your furnace will still run if you unhook all the low voltage wiring out at the heat pump. if you do this and stop blowing fuses. you know it is something on that wiring. goodl luck.

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1 Answer

FUSE SPEC FOR SONY KV-36FV16


The rear panel nameplate will state the unit power requirements. Look for number of amps draw. Let's say you read "2 A". Now, depending on where in the circuit this fuse is, your fuse size will be no more than two amperes (sometimes slightly greater if slow-blow fuse spec'ed). So, if your fuse is located immediately near the line-cord entrance to circuit board, start with a 1.0A fuse. If that immediately blows, then increase to a 1.5A fuse. Repeat until 2 A fuse is reached. If still blowing, then there is a problem with the set, either power supply or tube.

Jul 17, 2007 | Sony KV-36FV16 36" TV

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