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Frigidaire FRP77ETT2A0 Furnace Door Switch
The job of the furnace door switch prevents the fan and ignitor being triggered to start so as to stop a potential explosion. You should have the switch be exchanged for a new one ASAP if you suspect that it is not working.
Major clues the switch on your furnace door needs replacing ASAP
- The safety door switch has been broken
- The whole system will not run whether the door is open or closed
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