Thank you so much your video saved me a service call and God knows how much they wouldve tried to charge me

Great detective work!

Once again complete troubleshooting no wasted steps !!!

Great video

Only thing better then a goodman is a greatman. Great video.

Nice work

Good fix

Good vid ... Thx ...

Rock on!

I didn't watch all of this yet but I wanted to add my experience before I forget. I've changed a couple or 3 of these boards only to find out the low pressure switch wires have worn through somewhere. (Which can knock the board out) I've had one pressure switch to open permanently. If that wire is open or grounded it will not turn on the contactor. You might have already figured it out since I didn't have time to watch the whole video

Those defrost boards seem to have a high failure rate. I believe Aspen Mfg is based in Humble, TX and has been making HVAC coils for a long time. Those Aspen coils were quite popular in Houston for replacement jobs when I was in the HVAC business back in the 80’s. Those coils were dirt cheap back in those days.

That looks like another unstoppable Goodman. 😆

👍

I really liked my Mantooth probes because I could add refrigerant if needed unfortunately the charging port broke. Fieldpiece and Testo if you are listening... I carry this board as a replacement 47D01U-843 Universal Heat Pump

Those Goodman defrost boards fail alot. Also this unit is got a bunch of garbage around it. Since it's a heat pump it needs to be sitting on risers so it can drain properly when it defrosts.

How come the 2nd pressure switch was getting 0 volts as closed? Wouldn’t it be 24 volts? I assumed that if it was zero there would be no power running to it. Can you please explain. Thanks!

Mine says 30, 60, 90 then the 2 pin test. I moved the cover up one and the red light on board turned off. I plugged fuse back in an it kicked right on

So the defrost board has a high and low pressure cut-off switch. Will the board stop the voltage for any other reason if it is working properly, or are those the only two things that will stop the voltage?

I hate how close the housing is to the liquid port on goodmans

Because you’ve worked very hard, and I think very smart, just to be an hourly worker…