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International Comfort Products NTN3075FBA1 Air Pressure Switch
The reason for the existence of this type of switch is to sense whether the primary air circulator is blowing air. An air pressure switch is just one of many aspects of the whole safety system that is intended to keep you from harm. Some pressure switches are designed with a reset that is manual instead of automatic, by which you must manually reset it before the entire HVAC system will continue operating again.
How is it Known when your Pressure Switch has Failed
- The correct temperature indoors is almost never fully achieved.
- Inaccurate electrical voltage being read from the pressure switch.
- HVAC system will not function.
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