1mathom1

The HVAC fan control and the compressor button on my 2008 Ram 2500 started behaving strangely. The fan would shut off or come on by itself and sometimes if I shut the fan off the compressor would stay on. I did a search and found the suggested fix was to replace the ignition switch. So I did. Easy and cheap and the wires all looked good. NO CHANGE to the problem. Now I am wondering if the control module is bad.

Anyone else have similar issues? Am I on the right track?

47Dodge

Sounds like the control module. I just replaced my module on my 2005. It was on national back order. I ordered it last april. In September my parts store called a parts rep wanting to know whats up. He made some calls and found one some where and had it over nighted. Solved all my problems but I do not know if the back order is taken care of yet or not. Dodge Dealer wanted like 450$ for a module but I got this one for 130$ with a 250$ core charge. My HVAC system was not moving doors properly and kept defaulting the blend door to HOT and would not move to cold. I ended up wiring a pigtail to the blend door servo and all summer I would manually move the blend door so I could have AC or heat or adjust temp.


47