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International Comfort Products T9MPT075F14A2 Air Pressure Switch
The reason for the existence of the switch is to see if the primary air circulator is circulating the air as it should. Various air pressure switches are designed with a reset that is manual instead of automatic, which, of course, means that it would have to be reset by hand or the whole HVAC system will not continue operation. This pressure switch is part of all the safety features in today's HVAC systems that is in place to keep you safe from harm.
Signs to Look Out for when the HVAC Air Pressure Switch is Starting to Fail
- The desired temperature is never fully attained.
- Furnace can not operate at all.
- Bad voltage range running through the pressure switch.
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