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Carrier 24ANA748A0030020 Air Pressure Switch
The primary function of this type of switch is to sense if the primary air circulator is running. This pressure switch is one of many other hardware devices made to stop injuries or explosions. Some pressure 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.
Signs to Look Out for when your Pressure Switch is Starting to Fail
- Furnace can not ignite the gas.
- Wrong voltage range being read from the pressure switch.
- The correct indoor temperature is rarely reached.
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