Older York Gas Furnace

Oct 23, 2017 1 Replies

This year the blower fan does not kick off when in heat mode.


1st, check that someone didn't play with the thermostat and switch from Auto Fan to Fan On. 2nd, the fan controller (limit switch or roll-out switch) is shot and needs replacement. Your switch might be adjustable, but working until now means it should be replaced.

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