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Whirlpool ATR1255SPP0 Furnace Door Switch
The furnace door switch is a safety switch which inhibits initial fan and burner from switching on so as to stop a potential explosion. Do not waste time and have it switched out as quick as you can if it is defective.
Major symptoms the safety door switch should be replaced
- The furnace door switch seems to be fallen off
- The HVAC system does not even thing about starting even with the door closed
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