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Frustrating A/c Blower Problems


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Ok, I have searched and can't seem to find a definitive answer for this problem...maybe there is not one! But let me paint the picture and see if someone can help me, please! Ok here goes...I had a heater hose (top one) blow a couple of weeks ago, not having a lot of cash on hand right now (full-time student) I bypassed the heater core. Ok no bid deal since its summer. But since then my blower will come on for a brief moment and then turn off. Sometimes the little lights will come on and flash and the blower will not do anything, weird huh?? I read on here where some people have taken the blower moter out to inspect. So I did so, the motor seems to be fine. Turns ok! All connection seemed to be ok too. I read the codes B1 which were 414 & 418. 413-no vovltage to driver side interior sensor inlet fan & 418- no control signal to blower fan power stage. Can someone help decifer this for me and lead me in a formidable direction.

1994 850 Turbo 135,000 miles

Thanks,

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Thanks for the quick reply! So you think that it is the ballast resistor pack? Do you know where I can find one..part number?..and is it expensive? I thought about calling the dealer this evening but I know they are over priced...Continued guidance would be appreciated.

Thanks,

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  • 4 months later...

http://www.FCPgroton.com

try their web site or give them a call.

Hello folks I just wanted to let everyone know that I fixed the blower fan with the help of Bay 13, it was the ballist resistor behind the glove box. About 100 bucks from FCP, works like a champ. Did this several months ago just came across my old post and realized I didn't didn't update you guys, sorry.

Thanks

Luther White

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