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Friedrich MW09Y3H Air Pressure Switch
The actual job of the air pressure switch is to figure out if the main blower is doing what it is supposed to do. This pressure switch is one of the key devices that are created to keep you safe. A good number of pressure switches today have a manual reset feature, which forces the system to be reset physically in order for the HVAC system to continue running.
Symptoms that the HVAC Air Pressure Switch is Already Failing
- Bad voltage range being read from the pressure switch.
- The expected temperature is rarely attained.
- Your furnace will not operate at all.
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