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Hello I'm New To Site. I Have A Couple Of Problems. There Is No Heat Coming From Inside Vents. Had Heater Core Cleaned No Clog Found.erratic Display. Can Set Temp Controller To 90 Degrees Still No Heat.
 

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Hello Johndfw.
Yes I Installed A New Heater Control Valve First. I Now Have Some Heat But Not Like When I Had No Problem.i Think I'm Going To Buy A New Bcm & Prom To See If This Will Work.
 

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My BCM is not working either. The fan doesnt work at all. Replacing the BCM in your case might work. I'm not really sure how that thing works.

Good luck
 
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