Where is the heater blower motor relay located?
The blower relay is located near the front of the fuse block and is labeled “Blower.” Inspect the center of the relay. If the metal rod inside is broken, the relay will need to be replaced.
Which fuse is for the heater blower?
Locate the blower motor fuse, likely a 30 or 40 amp, it may be marked on the fuse box cover or in the driver’s manual.
When to replace a heater blower motor switch or relay?
When the motor gets old and tired it will draw more current through the wires than a new motor. It may still draw enough current to blow the fuse after it runs for a while. In that case, a motor replacement is in order. Step 1: Disconnect the battery. Put on your safety glasses and disconnect the battery at the negative cable.
What to do if your heater fan relay is not working?
Put everything back together the way it came and re-program the code into the radio if needed. If you’ve checked the fuse panel, and the fan motor doesn’t run at all, or if it runs only on the lower speeds, the blower motor relay may be at fault. Relays are used to carry electrical loads that are too large for conventional switches.
What does the manual say about a blower relay?
The manual may refer to a blower relay, an AC relay, or a cooling fan relay. If it says blower relay, you’re golden; if it says AC relay, you might have what you want. If it says cooling fan relay, it’s talking about the relay that controls the radiator fans. Some cars have something called a power relay or an “unloader” relay.
What should I do if my heater blower fuse blows?
The repair involves installing factory updates to make the fuse panels equal to the task. Step 4: Replace the fuse. If the fuse is blown, replace it and then try the blower. If the fuse blows right away, your car may have a bad blower motor or some other problem in the system.