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LG LP121HEM Air Pressure Switch
The reason for the existence of the air pressure switch is to determine whether the primary blower is circulating the air as it should. An air pressure switch is just one of the many indispensable facets of the HVAC safety checks that are dedicated to keep you safe. Some particular air pressure switches are issued with a manual reset feature, which means it would need to be reset in order for the HVAC system to continue running.
Signs that your Switch is Beginning to Fail
- Bad voltage range being read.
- Your furnace can't operate.
- System does not reach desired temperature when set by the thermostat.
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