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International Comfort Products H9MPD050F12C2 Air Pressure Switch
The function of this type of switch is to sense if the blower is blowing air. A lot of switches are designed with a reset that is manual instead of automatic, which makes you reset it by hand or the whole HVAC system will not continue operation. This switch is one of the vitally important safety devices designed to keep you safe.
How to Know when your Air Pressure Switch is Starting to Go
- Your furnace won't operate at all.
- Incorrect volt reading from the switch.
- HVAC system does not actually get to the right temp according to the settings on the thermostat.
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