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LG ARNU243TPC2 Furnace Door Switch
A furnace door switch is a safety feature that blocks the blower and other risky devices being triggered to start so as to avoid injuries. You should really have it exchanged for a new one ASAP if it is not working in order to prevent injuries.
Hints of a declining safety switch on the furnace door
- The safety door switch is breaking off
- The HVAC system does not function whether the door is off or on
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