carrier gas-packge "humming" noise

Old 02-17-12, 02:24 PM
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carrier gas-packge "humming" noise

Carrier "gas-package" makes "humming" noise when "heat" indicator comes on. However, fan is blowing properly and "humming" only coincides w/"heat" on indicator, pls advise
Old 02-17-12, 03:48 PM
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Take the cover off the burner compartment of the furnace. Obtain the model of the furnace off the rating plate in the burner compartment and post it here.

Observe the sequence of events that occurs at the furnace when you turn up the thermostat and post that sequence of events in order and in detail.

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