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How To Replace Heater Control Valve

A lot of people are familiar with the basics of valves and how they work. But what about the specifics of a heater control valve? This type of valve helps regulate the temperature in your home by controlling the flow of air or water into and out of your heating system. If it fails, your home may become too hot or too cold, respectively. In this blog article, we will explore the specifics of how to replace a heater control valve and how it can affect your home’s temperature. We will also provide tips on how to identify and fix any issues before they become major problems.

Identification of the Heater Control Valve

The heater control valve is a plastic or metal valve located under the dash near the windshield. It controls the flow of heat to your car’s radiator, and should be replaced every 10 years or when it becomes faulty. When the valve becomes leaky, your car will overheat and may require expensive repairs.

Testing the Heater Control Valve

If your car’s heater doesn’t work, it’s likely that the valve controlling the temperature is defective. This simple repair can fix the problem. The valve is typically located on the firewall near the engine. To test it, turn off the car and disconnect the negative battery cable. Remove the cover over the thermostat housing and locate the valve. It may be a simple brass screw with a spring-loaded ball on one end and a hole in the other. If it’s broken or defective, it won’t close when you turn the knob, and heat won’t flow to the heater element. Replace it with a new part and reattach everything. Test your heater by turning on the car and adjusting the thermostat until you get hot air coming out of the vents.

Replacing the Heater Control Valve

If your vehicle’s heater control valve is stuck open, you may be able to fix the problem by replacing the valve. The procedure for replacing the valve is as follows:

1. Remove the gas cap and unscrew the heat exchanger hose connector.

2. Remove the two screws that hold the control valve cover in place.

3. Disconnect the electrical connector and remove the valve assembly from the vehicle.

4. Clean all dust and debris from around the valves using a vacuum cleaner and a bucket of warm water. Dry off any excess water before reassembling the parts according to manufacturer’s instructions.