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International Comfort Products PGAA36D1K6 Furnace Door Switch
This switch blocks the fan and ignition sequence from switching on in order to prevent injury and fire. You should have the switch be exchanged for a new one immediately if you can, if it is defective.
Major warnings your safety switch on the furnace door needs a replacement ASAP
- The door mechanism appears to be eroded
- The HVAC system will not even begin to start whether the door is open or closed
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