Ask Experts Questions for FREE Help !
Ask
    esquire1's Avatar
    esquire1 Posts: 2,483, Reputation: 209
    Ultra Member
    		  
    #1

    Apr 10, 2007, 07:35 AM
    Transformer
    I have a Goodman Heat Pump. The transformer in the air handler burnt out and I replaced it with one protected with a reset button. Now, when I use unit, I can only use in emergency heat. When I use in heat or cool mode it will trip the transformer in 30 seconds. Is this a low voltage problem? Air handler is in basement and is just a short distance from outside unit and easy to replace low voltage wiring to outside. Would this correct problem or should I look for another problem? The low voltage wiring visually looks fine. What else should I be checking? Thanks for any help.
    JackT's Avatar
    JackT Posts: 260, Reputation: 19
    Full Member
    		  
    #2

    Apr 10, 2007, 11:55 AM
    If you have a ohm meter you should check the resistance on the 24 volt contactor coil. If you don't have a meter, pull one wire off the coil and try to start the unit. If the transformer doesn't trip the overload you have a bad coil. Usually a shorted wire will trip the overload instantly. You could also have a defective circuit board or a bad coil on the reversing valve. Some Goodman units also have separate time delay relays that short out.
Not your question? Ask your question View similar questions
 

Question Tools Search this Question
Search this Question:

Advanced Search

Add your answer here.


Check out some similar questions!

Replaced transformer [ 2 Answers ]

I had to replace the transformer on my furnace, the little switch beside the fan the on and auto was damaged too I couldn't find one so the man I got the transformer from said to just by pass it and tap it off,, well when I cut the air on ,the fan will come on automatic,, when I cut the heat on...

Transformer [ 10 Answers ]

Hi I've constructed a velleman amp, 2x30watt output, model K4003. Now to power this you need a 50Va transformer. I bought one and the pins along the input side are labelled 0 120 0 120 and the output 0 12 0 12

Transformer [ 3 Answers ]

What happens inside a transformer that increases or decreases the voltage?When a transformer steps up voltages,from where it creates thes voltages?

Transformer [ 1 Answers ]

Hi guys I'm having trouble finding a replacement transformer for my heating unit. The model number is AT140B1123. It's a Honeywell product but I can't find it on their website. Thanks Lou

Transformer [ 5 Answers ]

How can you tell if you have blown a transformer? Also, does anyone know where I can find a part number for my transformer without being able to get to the part itself? I have a model number of 58PAV. The circuit board is HK42FZ009. I believe it is Carrier but not 100%

View more questions Search