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240 heater 'always on' 200

posted by  im2bob on  Tue Jan 25 10:04 CST 2005
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My 1992 is blowing hot air even when the temp gauge is pushed all the way to the blue side. Even with the A/C turned on, I still get hot air.

I know this must be an easy one, but I could sure use the help.

Thanks,








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240 heater 'always on' 200

posted by  Trev29 on  Tue Jan 25 10:28 CST 2005
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last visit: Fri Oct 17 05:56 CST 2014
[RELATED]

The slide switch is attached to a stiff wire that pushes-pulls the valve closed-open. The wire may have slipped a bit.

Try loosening the screw that holds the wire to the slider, pull the slider over to the right a bit, then tighten the screw. This way when you push the slider all the way to the left you'll be pushing the valve closed.
--
1980 245 Canadian B21A with SU carb and M46 trans








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240 heater 'always on' 200

posted by  someone claiming to be 4 Volvos on  Tue Jan 25 10:22 CST 2005 [RELATED]

Your heater control valve is broken(internally)and allowing hot coolant to bypass the seal inside it.







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