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International Comfort Products TCA430AKA1 Air Pressure Switch
The actual job of an air pressure type switch is to determine whether or not the blower fan is doing what it is supposed to do. Most air pressure switches are programmed with a manual reset, which makes you reset it by hand before the system will continue its normal operation. This is just one of many devices that are created to stop injuries or explosions.
Signs that your Switch has Failed
- The furnace will not operate.
- The correct temperature indoors seldom fully achieved.
- Wrong voltage being used by the switch.
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