Author Topic: GOODMAN DEFROST CONTROL BOARD  (Read 2776 times)

Offline pufflizard

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GOODMAN DEFROST CONTROL BOARD
« on: September 28, 2017, 05:10:59 AM »
need help please! to make a long story short, my a/c was not working on my goodman heat pump. the hvac tech that came out (he 1st replaced the transformer and the contactor) said he bypassed to make it cool and told us to order a new defrost control board and to save us money said we could hook it up ourselves. fast forward, power off, installed new board. a/c works . the question is, he said we would not have heat until we replaced that board. trying to figure out what wire he moved so the heat would not come on and we would just have a/c. apparently it has something to do with the board and reversing valve as I understand. on the board , there are 2 "o's" and from my research the 1st "o" is for the reversing valve and the 2nd "o" should be a black wire and runs from the board to the contactor? so what wire do I need to connect to the board so that I will have heat? I have photo's of before and after the board was replaced if that might help someone to help me. (all this is giving me a terrible headache, and I will need heat by Saturday) thanks!

Offline Admin

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Re: GOODMAN DEFROST CONTROL BOARD
« Reply #1 on: September 28, 2017, 05:35:49 AM »
You should be able to post the pictures here.

Offline pufflizard

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Re: GOODMAN DEFROST CONTROL BOARD
« Reply #2 on: September 28, 2017, 07:33:28 PM »
no luck posting my pics, but if anyone can offer help, I can email them

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Re: GOODMAN DEFROST CONTROL BOARD
« Reply #3 on: September 28, 2017, 08:40:38 PM »
Click the reply button then Additional Options to attach a picture.

Offline pufflizard

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Re: GOODMAN DEFROST CONTROL BOARD
« Reply #4 on: September 29, 2017, 04:36:49 AM »
I'm thinking that he just moved 1 wire from the second O to something else. could it be the thinner black wire as shown in the photo #3808?

Offline pufflizard

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Re: GOODMAN DEFROST CONTROL BOARD
« Reply #5 on: September 29, 2017, 05:21:36 AM »

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Re: GOODMAN DEFROST CONTROL BOARD
« Reply #6 on: September 29, 2017, 08:12:59 AM »
What is the model number?  I'm not sure if the attached wiring diagram will help you.