Heater fan C/B tripped twice in 2 weeks.CAMRY 91.

Why does the heater fuse keep blowing
This place offers a few suggestions, like fan motor old and pulling too much current, or fan switch, ect

Remove the Glove Box assembly. The heater fan and the heater fan resistor are behind the glove box. It is on my 90 4-cylinder Camry.

try checking the ignition switch you may have a short allowing the circuit to stay on.

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Check the voltage output of your car with the engine running. It should read 13 to 14 volts. only. Higher than this will cause damage to the fan motor, and other 12v gadgets in your car. Is this happening? If not, then, check the aircon evaporator for grounded wiring connections. This is the line from the fuse box terminal to the line going to the aircon. Grounded line can cause a lower voltage reaching your fan motor, forcing it to run undervoltage, overheating it. Send us your e-mail so we can give you further
assistance.

2002 CAMRY MY ENGINE LIGHT CAME ON - THE DEALERSHIP SAID IT WAS A PO171,P1130,P1135 DO I HAVE TO GET IT FIX. 448.00 IT WILL COST

I had the same exact problem. In between the door and the body theres a wire harnass. Wires coming through the door were cut almost all the way through. cut the black plastic covering off. Only 2 of my wires were cut.

heater fan speed switch located in heater box by passengers feet up in heater box one plug on it cant miss two screws hold it in!!!!

Sounds like Heater matrix blocked, check pipes going from engine bay into bulk head both should be getting hot if one is not then may be worth removing pipes and trying to flush it through as would be expensive to renew it as its a large job.

Thank you allowing me to provide my assistance.

Is the noise that you hear a loud "humming" nosie? If so, I need you to remove the lower panel, under the glove box, (if it has one), and remove the 3 screws that hoilds the heater fan to the plastic box. After removing the fan, inspect the fan and inside the box for debris. Most likely, you will find some type of debris contained in the fan blades. This is very common, I drop 2-3 fan motors a week around this time of year. You may also find a rodent nest in the fan area.

radiator could be stopped up, fan not working properly, or t-stat sticking.