Heating AC and Engine Cooling
Chevy S-10
Heater Cores and Blower Fans
Car Heaters

How do i check heater control switch?


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Wiki User
2015-07-15 21:11:41
2015-07-15 21:11:41

Most times I have seen either a bad switch or broken vacum lines. you might want to make sure that none of the line got mixed up if they were removed at some time.


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If you are talking about a wall switch for the heater, check to see if the heater has its own internal thermostat or switch as this might be in the off position and not allow the heater to turn on. If you are talking about a switch on the heater itself, then yes in all probability the switch is not working.

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Remove the heater control switch decorative cover. Remove the retaining screws. Remove the wiring harness. Reverse the process to install the new switch.

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The 1992 Acura heater control relay switch can be found beneath the passenger side dashboard. The heater control relay switch will be a few inches above the kick plate.

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First check your fuses. Next check your fan to see if it is working and if the wires are hooked up. The fan is located in the engine compartment on the passenger side. If the fan tests good it is your heater relay located on the heater core cover or the fan switch on the heater control. The heater control is in the passenger compartment. The fan switch will usually work on at least one setting.

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