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The AC control switch is essentially an electronic circuit board with knobs and switches. Overheating in the motor and fan can cause some parts to malfunction within a few hours.

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. Overheating AC parts. Finally you can never discount the risk of fire. It means that if the heater refuses to turn off wear and tear is accelerated.

Several issues have been reported but most often the issue revolves around the failure of one of the blend air door actuators. In certain cases the switch may short circuit or develop a resistance problem which may cause the switch itself to overheat. Air Conditioner Compressor Clutch - 25 to 5 amps.

According to the National Fire Protection Agency local. Anytime the heater stops working its best to check the basics too like the coolant level thermostat and coolant flow. Heater AC blower motor depends on load size and speed setting - 2 to 30 amps.

One of the first signs that the AC control switch may be having a problem is that certain parts of the AC may overheat. Connect the meter in series with the device then apply 12 volts to see what the current reads. Its exactly like your car.

Heat may stop working either from one or all the dash vents. One way to measure the amp load in a circuit or device is to use a multimeter that can read amps. Every second spent on the road leads to wear further and tear.

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