Goodman A/C Problem


  #1  
Old 08-30-19, 09:36 PM
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Goodman A/C Problem

Hello,
I have a Goodman model CKL30-1d
the indoor coils sits atop a Intertherm model FEH-012ha.

The unit works in heat mode.
when you put thermostat on cool the thermostat blinks cool on but nothing happens when you put the t-stat on fan only the fan does not run. I checked the voltage between between R and C on the control board on and got no reading so I replaced the secondary xformer(fan relay). I am unsure of my meter now as that is not the fix. Any Ideas Please? Thank You!

 
  #2  
Old 08-30-19, 10:09 PM
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I forgot to note that I can press the contactor at the outdoor unit and it runs
I also realized I can hear the the thermostat click when turned on to heat but not when turned on to cooling or fan only. Thank
 

Last edited by mkelee; 08-30-19 at 10:36 PM.
  #3  
Old 09-05-19, 12:11 PM
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You may need a new Thermostat.
 
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Old 09-05-19, 01:20 PM
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Check control voltage to the outdoor unit.
Check your meter using an outlet or something else you know is hot
 
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Old 09-05-19, 04:09 PM
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Thank You, I will do that when I get back out there.
The system does not get used much.
I think its low voltage, the thermostat does not click either.
On the unit outside I replaced the contactor as it was in horrible shape. When I pulled the old one out, the contactor plate fell out.
I replaced the cap as well it was completely rusted up and a spade was loose.
the transformer on the intertherm shows 24 on the low and 240 on the high side. 24 volts between the r and the c.

 
 

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