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What is the VA rating of a suburban P-40 propane furnace (120 V) transformer?

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Should be 40. Look on the transformer

Posted on Dec 10, 2016

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Hello, make sure that it is the correct VA rating for the furnace. if it too small it will keep blowing. Also, i would check the wiring at the control board make sure it is not touching any other wires there.

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You should be seeing 120 volts to the igniter. Anything less requires either a replacement of the transformer, start relay or control module.

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