Carrier 48gs furnace won't shut off

Foursneeds Posts: 1, Reputation: 1

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Mar 23, 2013, 12:01 PM

Carrier 48gs furnace won't shut off

Replaced batteries in thermostat. Thermostat appears to switch off when temp is reached, but heater keeps blowing hot air. If I turn the switch to off the unit stops blowing air. Any thoughts?

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