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Tim H.
Tim H., HVAC Professional
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My white rogers thermostat type # XXXXX is flashing HVAC

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My white rogers thermostat type # XXXXX is flashing HVAC OFF How do I turn my a/c on
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Your thermostat may have locked up. Try taking the batteries out if it has them and turning the power to the furnace off for approximately 20-30 minutes. Then replace batteries and turn power back on. You will need to reprogram unit.
If this doesn't work, thermostat will need replacement.
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