Question about Heating & Cooling
I have a Coleman 38TKB060 outside unit and an Evcon gas heater/cooler inside unit that I'm having trouble with.
The entire unit went out last night on me as if it's not getting power. I tested the power supply to my inside unit in my attic and I'm getting 120 volts to it. I followed the power supply down and I know it also goes to the 24v transformer. But, I couldn't test the power coming out of that transformer. I did test where the 24v line runs from the attic unit to my thermostat on the wall and where the 24v line runs to my outside unit and neither is getting 24 volts.
There are only 2 items power travels through on this path. The 24v transformer and another large "box" (for a lack of a better word) that controls the fan and sends the 24v power to the thermostat and to my outside unit.
Does that sound like a blown transformer? Can that happen?
If that's the problem can I do it myself? And if so, how do I know which one to buy?
Thanks for your help.
Transformer has just 4 leads. 2 for primary which is your 110 volts and 2 for secondary which is supposed to be 24 volts ac. if you splice the two secondary wires coming out of your transformer, you should be able to get a 24 v ac there.
the box that you are referring to could be a fire controller that in case of fire, it would shut off the fan and the compressor outside.
tnx 4 using fixya,
Posted on Oct 01, 2008
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Posted on Jan 02, 2017
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