Control Board Transformer Voltage

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Old 02-09-18, 04:57 PM
Mirage's Avatar
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Angry Control Board Transformer Voltage

Hi,
I have a furnace having issues and I noticed my Transformer is reading 29.5V output. The Schematic says it should be 24V. Is this a serious problem? Is too much Voltage a bad thing or can my furnace handle it just fine?
I'm thinking maybe the transformer is defective and it's outputting too much Voltage, and not enough current to 'drive' the rest of the circuit.
 
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Old 02-09-18, 05:05 PM
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That is ok. Your furnace board can handle that voltage.
For the most part.... higher wattage transformers run at slightly higher voltages.

If you check the voltage under operation.... it should come down some.
 
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