HEATER does not BLOW air

Tiny
CHAD DOWNS
  • MEMBER
  • 1999 JEEP WRANGLER TJ
  • 130,000 MILES
Heater, air conditioner and defrost is not blow out air on any setting. Changed fuse, no joy.

Where do I go next?
Sunday, November 20th, 2016 AT 5:10 AM

2 Replies

Tiny
BUCHANAN BEATON
  • MEMBER
  • 1 POST
Ive changed the resistor blower motor my climate controls checked each fuse I still have nothing 97 jeep tj
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Thursday, December 12th, 2019 AT 11:17 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 43,081 POSTS
Hello,

There is a blower motor relay that needs to be checked and check for power at the fuse and ground at the mother here is a guide to help you test the system and the blower motor wiring diagrams below so you can see how the system works.

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

and

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

Blower Motor Relay In wire harness connector, near right end of heater-A/C housing.

Check out the diagrams (Below). Please let us know what you find. We are interested to see what it is.
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Thursday, December 12th, 2019 AT 12:43 PM

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