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International Comfort Products NDC7075BFA3 Air Pressure Switch
The main function of the air pressure switch is to sense if the air blower is actually running. Some different switches can have a manual reset, which means it would need to be reset before the HVAC system will continue. This is one of the critical mechanisms designed to stop injuries or explosions.
Warning Signs that the Air Pressure Switch is Starting to Fail
- Inaccurate voltage range running through the switch.
- The proper temperature indoors is almost never fully achieved.
- The blower fan refuses to operate.
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