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International Comfort Products N9MP2050B12C2 Air Pressure Switch
The job of the switch is to determine whether the blower fan is blowing air. This switch is part of the safety system that is in place to keep you safe from harm. Most air pressure switches are constructed with a manual reset, which means it would need to be reset before the HVAC system will continue.
Symptoms to Look for when the System Pressure Switch is Needing to be Replaced
- Inaccurate electrical voltage reading from the switch.
- Furnace refuses operate at all.
- The set indoor temperature is rarely reached.
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