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LG LP070CED Air Pressure Switch
The main function of the switch is to sense whether the blower fan is on and running. A good number of pressure switches today may have a reset feature that is manual, by which you must manually reset it in order for the HVAC system to continue running. This switch is part of a small, but important collection of mechanisms designed to stop injuries or explosions.
Warning Signs that the System Pressure Switch has Failed
- The set temperature indoors is never achieved.
- Bad voltage range reading from the switch.
- Your heating and cooling system refuses to operate properly.
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