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Mitsubishi PKA-A18HAL Furnace Door Switch
A furnace door switch is a safety feature that blocks the fan and other risky devices from starting in order to prevent injury and fire. It is important to get the part exchanged for a new one as soon as possible if it is causing you problems.
Some warnings your furnace door switch needs replacing ASAP
- The furnace door switch appears as though it has been broken
- The system will not engage even when you close the door
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