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Carrier 38TKB030 Air Pressure Switch
The actual job of the switch is to sense whether the blower fan is on and running. This is just one of many devices designed to keep you from harm. A good number of pressure switches today are constructed with 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.
Common Symptoms of a Failed Pressure Switch
- The furnace or AC refuses to run correctly.
- The proper indoor temperature is hardly ever achieved.
- Inaccurate voltage running through the pressure switch.
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