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Carrier 38TRA048 Furnace Door Switch
The furnace door switch is a safety switch which blocks initial fan and ignition sequence being triggered to start in order to prevent injury and fire. You should really have it traded for new one at once if it is not working in order to prevent injuries.
What symptoms are present when the furnace door switch is about to go out?
- The furnace door switch appears as though it has been fallen off
- The HVAC system will not start whether the door is off or on
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