This year the blower fan does not kick off when in heat mode.
Older York Gas Furnace
Oct 23, 2017
1 Replies
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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