Blower motor keeps blowing fuses

Good morning,

The blower motor is under the dash right side behind the glove box.

https://www.2carpros.com/articles/blower-fan-motor-works-on-high-speed-only

https://www.youtube.com/watch?v=6TY3rXenEok

I attached pictures for you of the location.

Roy

I know where the blower motor is looking for the relay.

Picture attached.

Roy

I will check the other side someone had said it was in back of the fuse block on the drivers side. I have that side apart. I will put that back together and check passenger side. Will let to know how I made out. Thanks

You are welcome.

Let me know if you need any help.

Roy

If it's not the relay. do you have any idea what could be the problem as to way the fuses would be blowing on high setting?

I attached a diagram for you to view.

The high speed is controlled by the blue/white wire at the selector switch. It could be the selector switch or the wiring from there to the motor.

Roy

Thanks I'll let you know how I make out.

You are welcome.

Roy

These are pictures with glove box out. I see nothing that looks like the picture you sent me.

That relay in the first and second picture looks like the relay.

Roy

The blue one is the one that calls for this car to use and that one there looks nothing like this the blue one is on the top when I took the picture.

The pins are different.

There is a difference with part numbers due to manual AC or automatic climate control.

I attached a picture from rock auto.

Roy

Mine is manual.

You showed a picture of the tan relay. What about the blue relay?

Roy

The blue one I got at O'reilys auto the blue one is the one it calls for. The brown one has to many pins per picture I sent.

In the diagram I sent you of the relay, do all the wire colors match up to the relay?

Roy

A big no.lol

Does either relay have the colors on the diagram?

If not, can you give me the complete VIN?

Roy

The cooling tube came off motor. I'm starting to think the motor got burnt out. I have one coming Monday.

Okay, keep me updated.

Roy

Thanks. I'm done with it for today. It's beer thirty time,lol.

You are welcome.

Always glad to help.

Roy

Hey, giving an update that tan was the relay unplugged fan didn't blow at all. Put a new relay wasn't the problem installed a new blower motor all is good to go. Thank you.

You are welcome.

Always glad to help.

Roy

I am having the same issue! I have a 2002 Infiniti I35. I have changed the blower motor, blower motor resistor, blower motor relay and the blower motor fuses. Every time I turn mine on high A/C or heat I blow fuses. What would cause that?

Good morning,

Since you replace all those parts, you will need to do an amp draw test on the blower motor. It sounds like it is drawing too much current.

https://www.2carpros.com/articles/how-to-check-wiring

https://www.2carpros.com/articles/how-to-use-a-voltmeter

I attached the wiring diagrams of the system for you to view. You need a voltmeter with an amp clamp to test the draw. Your new blower motor may be the issue.

Roy

Even the old blower motor is blowing the same fuses. I thought the same thing so I took the new output the old back in and tried again. I don’t have the tool to check wires so should I just assume that’s my issue and spend the $30.00 to replace the wire harness?

There is an amplifier in the circuit. That could be it but I doubt it.

The harness is a guess. I would borrow one from someone to confirm.

Roy