Repairing Your Vehicle’s Broken Heater

What your heating system looks like

What your heating system looks like

It doesn’t take long for you to notice your heater isn’t working the way it should. Odds are you use your A/C and heater on a regular basis and know what to expect. The moment something is out of the ordinary, you’ll pick up on it.

We’ve covered what you can do if the heater won’t turn on or won’t blow the right temperature of air but what happens when the heater won’t shut off? If you turn off the heater but it’s still blowing air then the first thing you need to do is turn off the ignition. As silly as it may sound, make sure the key is turned all the way off.

Killing the ignition will cut off power to the heater fan as well as stop power draining from your battery. Every car’s heater blower fan has a module that controls what it does. If the module is malfunctioning then it’s possible for your heater to not turn on or off.

Note: Replacing the heater module will almost guarantee to fix this problem. Many DIYers have reported that this service has solved this particular problem.

Getting to the heater module may not be the easiest thing under the hood to access, so a temporary fix is to locate the fuse that protects the heater circuit. You may have to check your owner’s manual to find the location of the fuse. Once located, remove the fuse from the fuse box to stop the blower fan. When you’re ready for the heater to be on, simply replace the fuse.

Tip: This solution also works if your heater blower fan is still on when the car is completely turned off.

Some of these services and repairs can be very involving so if you want to leave it our experts then bring your car in to 2J’s Automotive. Our mechanics at 2J’s will give you a free diagnostic test (valued at $80) to find what the problem is and where it’s located and get to work when you’re ready.

Call us at 817-232-9866 if you have any questions about your car’s heater.

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