Well, I guess it's no surprise. The 'defrost timer' control board on my Goodman heatpump went bad. I got the P/N from the board and ordered a replacement. (ICM318C)
Of course, it doesn't match. The new board has a 30/60/90 minute defrost timer setting that the old board doesn't have. The P/N is identical to the old board.
So, what's with the board? The terminals on the new board match the old one except for this timer setting.
Thanks all
Take a look at this site, it will explain it fairly well. You can figure out what setting you'll need.
Check with your local HVAC company and ask them what setting you need.
If your not sure of what setting you need then pay for a service call so you do not cause any damage to your system.
Excellent site! thanks much
Thanks Moe...too bad you're not in Dallas!
i notice the site recommends a 90 min. setting. any issues if I set it shorter than that?
I think it would be OK because you live in Dallas. The longer settings are for heat-pumps who live up north where there is allot of snow.
I take it back......down here where I live anyone who lives north of I-10 is conceded as a Yankee. :-)
Here in Alabamastan we have high humidity, sometimes in winter. If you live near a coast or area were you have a lot of fog you may have to decrease the interval for defrost. A good bet would be to ask the Goodman factory rep for your area, he/she/it would probably know.
[8~{} Uncle Monster
well, installed the board and no dice on the unit starting up. so it wasn't that! Thanks for your help
Actually it's/was 105. Goes through Conroe. Course the way they're abuildin' up there somebody might have moved it down to 1960. I10 huh? Didn't know it'd come down that far.
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