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International Comfort Products H9MPD100J20C1 Furnace Door Switch
A furnace door switch is a safety feature that blocks the fan and gas ignition from switching on so as to avoid injuries. It is important to get the part traded for new one at once especially if you think it is defective.
Subtle hints the switch on your furnace door will die soon
- The switch looks broken completely
- The whole system does not even thing about starting with the door closed
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