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Friedrich MW30C3G Air Pressure Switch
The reason for the existence of the switch is to sense whether the blower is running properly. The vast majority of pressure switches made today are designed with a reset that is manual instead of automatic, which means it will have to be manually reset in order for the HVAC system to continue running. This pressure switch is one of the vitally important safety creations designed to keep everyone in the house safe.
How is it Known when the HVAC Air Pressure Switch is Starting to Fail
- The furnace or AC will not function.
- Incorrect voltage range being read from the pressure switch.
- The expected indoor temperature is never reached.
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