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Haier HPY08XCM Air Pressure Switch
The job of the air pressure switch is to figure out if the blower fan is running. The vast majority of pressure switches made today are designed with a reset that is manual instead of automatic, from which it would have to be reset manually or the whole HVAC system will not continue operation. This switch is a very critical piece of all the safety features in today's HVAC systems that is in place to keep you safe from injury or explosions.
Signs to Look Out for when the System Pressure Switch is Going Bad
- Furnace can't run.
- Inaccurate volt range reading from the switch.
- The desired temperature indoors is almost never fully attained.
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