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LG LP121HEM Furnace Door Switch
The furnace door switch is a safety switch which prevents initial fan and other risky devices being triggered to start in order to prevent injury and fire. It is quite important to have it traded for new one as soon as possible if it is not working in order to prevent injuries.
Major clues the switch on your furnace door needs a replacement ASAP
- The safety door switch seems to be beat up
- The HVAC system does not operate whether the door is open or closed
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