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Mitsubishi MSZ-A26YV Air Pressure Switch
The main function of an air pressure type switch is to determine whether or not the primary blower is on and running. An air pressure switch is part of a small, but important collection of hardware devices made to keep you from harm. The vast majority of pressure switches made today may have a reset feature that is manual, which, of course, means that it would have to be reset by hand in order for the HVAC system to continue running.
Clues that your Air Pressure Switch is Already Failing
- Inaccurate volt range running through the switch.
- HVAC system refuses to run.
- The desired temperature in the house seldom fully attained.
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