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No power from Furnace to transformer for HUM

3K views 2 replies 3 participants last post by  biggles 
#1 ·
I have a Rheem furnace (RGRA control 1028-928 ). There is no power going to the humidifier. I hope someone can help me troubleshoot the power source/transformer. I'd appreciate if you can provide step-by-step instruction for this.
The transformer is class 2 24v 12av. I tried to test it with the multimeter. But i was not sure if I did it right. the voltage reading was 0 on both input and output of the transfomrer. The resistence of the input read .023 and the output read .005.
 
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