Thread: No Heat
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Old 11-16-2012, 06:42 PM   #9
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Join Date: Nov 2012
Location: Los Ranchos, NM
Posts: 7
My Ride: E46
Originally Posted by Joe the Welder View Post

With some additional help, I found the problem.

There are two sensors located in the heater box that adjust the voltage signal through the climate control panel and into the heater control valve. One of the sensors was defective and it was sending a signal that the temp in the heater box was high heat at all times.

I had the sensor changed and the problem was solved.
I appreciate your reply. I have been searching for the details of those sensors. Do you have any part number or realoem diagram that they are on perchance?

edit: Looks like I am looking for the "heater core temperature sensor" which seems to be located behind the heater control panel. Does this sound like the sensor you ended up replacing?

Last edited by genericuser; 11-16-2012 at 11:08 PM.
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