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International Comfort Products T9MPD125L20C2 Air Pressure Switch
The job of this type of switch is to sense if the main blower is running. The vast majority of pressure switches made today may have a manual reset, which, of course, means that it would have to be reset by hand before the HVAC system will continue. This pressure switch is part of the safety system in place to keep you safe from injury or explosions.
Clues that your HVAC Air Pressure Switch is Beginning to Fail
- The proper temperature indoors is hardly ever fully achieved.
- Incorrect electrical voltage being used by the switch.
- The furnace will not ignite.
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