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Lennox HP13-048 Air Pressure Switch
The main job of the air pressure switch is to figure out if the blower is doing what it is supposed to do. This switch is just one of many mechanisms designed to stop injuries or explosions. A lot of switches can have a manual reset, which, of course, means that it would have to be reset by hand before the entire HVAC system will continue operating again.
Evidence of a Broken Pressure Switch
- Your heating and cooling system is unable to operate.
- The desired temp is rarely fully achieved.
- Inaccurate voltage being read from the pressure switch.
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