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Mitsubishi MSZ-A12NA Air Pressure Switch
The primary function of an air pressure type switch is to determine whether the main blower is blowing air. This pressure switch is one of many other aspects of the whole safety system that is intended to keep your family safe and sound. Some pressure switches are programmed with a manual reset, which means you have to physically reset it before you can continue using the system.
Warning Signs that the Switch is About to go Bad
- The desired temperature is almost never attained.
- Inaccurate voltage being read.
- Your furnace can't operate at all.
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