I went to turn on my heater, nothing came out?

Tiny
ARNOLDOJIMENEZ
  • MEMBER
  • 2001 MITSUBISHI DIAMANTE
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 100,000 MILES
I have a 2001 Mitsubishi diamante and this morning when I went to turn on my heat, nothing came out. The dial still shows the the numbera and the force that the heat would normally come out, but nothing is blowing.
Tuesday, December 14th, 2010 AT 7:05 PM

1 Reply

Tiny
SQM
  • MECHANIC
  • 6,383 POSTS
Hello,

This could be due to a bad blower motor relay or a bad blower motor.
First check the relay.
It is located under the dash on the driver side, left corner (see diagram below).
Inspect the relay for any corrosion or burnt pin(s).
You can also test the relay:

https://www.2carpros.com/articles/how-to-check-an-electrical-relay-and-wiring-control-circuit

If the relay is bad replace it. If the relay is good check to see if you are getting power to the blower motor harness. The blower motor is located under the glove box on the passenger side (see diagram below).
If there is power to the motor then it is a faulty blower motor.

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

I attached diagrams for your reference.

Please let me know of any questions.
Thank you.
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Saturday, September 25th, 2021 AT 7:03 PM

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