furnace not doing anything


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Old 06-07-17, 04:45 AM
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furnace not doing anything

i have a rheem furnace model RGLH-05EAUER serial number DF5D302F369704294 and it is doing nothing i checked for power, i have power. anything else that you can tell me to check i would appreciate it

thank you
 

Last edited by 70lemans; 06-07-17 at 05:22 AM.
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Old 06-07-17, 05:27 AM
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Are you trying to turn on the heat or cooling?
 
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Old 06-07-17, 07:41 AM
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both even tried just turning on the fan and nothing
 
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Old 06-07-17, 08:52 AM
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Make sure you have 24VAC at the control board in the blower section of the furnace. If you do then check to see if you have 24VAC on Y and common to see if the stat is calling for cooling.
 
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Old 06-07-17, 08:18 PM
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Looks like a downflow furnace so the board should be up top. There should be three LED's on that board near the thermostat wiring connection.

There are several different versions of that board used. They all show the LED's but one shows a fuse. So look for a plastic automotive type fuse.

The transformer connects to the board also near the thermostat wiring. Those two wires should show 24VAC as well as the R and C thermostat connections.
 
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Old 06-14-17, 03:13 AM
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ok sorry its been a little bit I checked for 24vac across the thermastat wires and got nothing so i metered the transformer i have 120 going into it and nothing coming out. I purchased a new transformer plugged it in and tried the furnace and nothing metered the transformer again and still 24vac coming out plugged it back in and heard some sizzling noise and the transformer started to smoke so i powered it down and disconnected it. I had to go out of town for work so my sister called a repair man and he determined that in fact it was the transformer that was bad but what made it fry was the wires going out to the ac unit where shorting together due to the landscapers and there weed eaters he replaced the wire cleaned the unit and checked the charge and replaced the transformer and got it running. thank you for your help if i would have had more time we could have figured it out.
 
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Old 06-14-17, 07:44 AM
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Make sure the new transformer is fused, or has some sort of over current protection. This will save the new transformer from future damage due to shorting out.
 
 

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