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Blower motor relay?

Help, Advice, Owners' Discussion and DIY Tutorials on Volvo's stylish, distinctive "P2" platform cars.

2001 - 2007 V70
2004 - 2007 V70 R
2001 - 2007 XC-70
2001 - 2009 S60
2003 - 2007 S60 R

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Blower motor relay?

Post by adriggs1 » Fri Dec 22, 2017 1:40 pm

I changed the blower motor in my car a couple years ago and things have been fine except for two things. The first is the motor never turns off except for when I take the key out. When I turn the fan speed to zero, it spins slowly and still blows air through the vents. If I have the engine off, but the key in position II, the motor runs when turned to zero and surges randomly. I replaced the resistor but I’m still having the issues. The only concern I have is that it will eventually stay on all the time and drain the battery. I’m thinking the relay switch but I don’t have the tool to test the voltage yet. Thoughts?

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