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defrost control board for heat pump wf3h 09-10-2007
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Posted by wf3h on September 10, 2007, 9:38 pm
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


Posted by Uncle Monster on September 10, 2007, 10:08 pm
wf3h wrote:
> 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.

http://toad.net/~jsmeenen/defrost.html

[8~{} Uncle Monster

Posted by wf3h on September 11, 2007, 5:06 am
> wf3h wrote:
> > 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.
>
> http://toad.net/~jsmeenen/defrost.html
>
> [8~{} Uncle Mo

Excellent site! thanks much



Posted by wf3h on September 11, 2007, 5:20 am
> wf3h wrote:
> > 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.
>
> http://toad.net/~jsmeenen/defrost.html
>
> [8~{} Uncle Monster

i notice the site recommends a 90 min. setting. any issues if I set it
shorter than that?




Posted by Moe Jones on September 11, 2007, 9:07 am
wf3h wrote:
>> wf3h wrote:
>>> 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.
>>
>> http://toad.net/~jsmeenen/defrost.html
>>
>> [8~{} Uncle Monster
>
> 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. :-)

--
Moe Jones
HVAC Service Technician
Energy Equalizers Inc.
Houston, Texas
www.EnergyEqualizers.com



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