Question about Volvo S70

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Volvo s70 when starting the car the heater blower comes on for 3 secs and then goes off diagnostic points to the blower motor but when i put 12 volts through it it works fine

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The most likely cause of this issue is the blower motor reisitor hidden either in the ducting nearest the blower fan or in the case nearest the fan. Either way, it's going to be in the way of the air so it can cool. If this thing is overheating, it would cause the fan circuit to open. Check this out first and let me know.

Posted on Aug 23, 2010

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Heater doesnt work


To troubleshoot this types of problem,click the link below :---
Car heater blowing warm, but not hot air?http://schematicsdiagram.blogspot.com/2011/12/car-heater-blowing-warm-but-not-hot-air.html

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Engine Overheats and heater blowing cold?

http://howtobyme.blogspot.com/2011/11/engine-overheats-and-heater-blowing.html

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Heat blows cold on drivers side and hot on passenger side?

http://schematicsdiagram.blogspot.com/2011/12/heat-blows-cold-on-drivers-side-and-hot.html

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No heat on car? http://technoanswers.blogspot.in/2012/02/no-heat-on-oldsmobile-silhouette.html

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Heater blows intermittently and temp gauge goes erratic?

http://technoanswers.blogspot.com/2012/01/heater-blows-intermittently-and-temp.html

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http://schematicsdiagram.blogspot.in/2012/02/heater-blows-cold.html

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Heater/AC blower motor not working?

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This will help.Thanks.

Mar 27, 2012 | 1994 Volvo 960

1 Answer

My 1998 S70 check engine light will come on and the heater will stop blowing hot air and the radaitor fan will start running on high. The blower will continue to work but the air temp changes from hot to...


You have air in the cooling system.

Please see my tip at http://www.fixya.com/cars/r6235876-no_heat_fan_blowing_cold_air . These are generic instructions. If you get stuck or need specific instructions for your car, please get back to me with model, year and engine info.

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1 Answer

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Hi you need the car putting on a diagnostic machine to determine the problem, these lights come on for a reason, Hope this helps

Regards
Steve

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