Hi all I struggling to work out why my heater isn’t blowing, the fuse appears to be good, the resistor is resisting and the fan switch it self has continuity across the terminals as I flick it along it’s range. My only thought is that I have no 12v power coming from the plug for the fan speed control but do I need 12vs there? And if so why don’t I if the fuse is good?

any help would be great

cheers
lucas

 

What year is your Cherokee?

 

Is the motor getting power?

 

95 sorry

i didn’t get that far sorry got ****ty and packed up

 

check this
https://www.cherokeeforum.com/how-to...working-398199
and also the related items at the bottom of the page.

Also check fuse# 5 30amp on inside fuse panel.

 

thanks Bruce. I don’t have anything on the radiator except for the cooling fans. I assumed the fan was on the inside under the dash

cheers
lucas

 

yea, the pictures don't make sense....the heater blower is on the passenger side against the firewall behind the windshield washer fluid.
The blower power plugs in from the engine bay side....Should be a black and green wire with a connector. Unplug the connector and test for power from the harness side of the connector. Have the key on and the fan switch to high and use a multi-meter to test for power. If you have power, the blower may be bad and need replacement. If you have no power, start looking at fuses and connections. Also you will want to remove your ignition cover on your steering wheel and inspect the main ignition connector for signs of burnt or overheated wires as the main power for the blower runs through your ignition switch.

 

Awesome thanks bruce