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Heater/blower speed control not working as it should.?? LOOK-IN..!

Discussion in 'Cavalier/Calibra How to and FAQ's' started by MadOnVaux!, Feb 11, 2004.

  1. MadOnVaux!

    MadOnVaux! . VxON Club Member

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    There has been a few threads and posts about members that are having problems with the heater/blower speed control...with the blower not working until the control is on full or position 3.

    I myself had this problem with the old LS that i had...the blower didnt work until setting 3 which only blew as if it was on 1 and then on setting 4 it was full blast.

    The problem is the ceramic resistor on the blower motor itself under the scuttle panel as ive just replaced mine and i now have a fully functioning heater :D

    Heres how to sort it...

    Lift up the plastic scuttle panel under the bonnet and you will see a light green 'thing'(the resistor) sitting next to the motor with a black plug on the top...unplug this plug and gently push the two tall clips on the left towards each other,one is tricky due to a nut but can be freed with light pressure from a screwdriver...wiggle it abit and the resistor then slides up and off...get one from a scrappy for not much money at all(mine cost 50p with some other bits :D ) and swap em over!

    Job Done!
     
  2. MadOnVaux!

    MadOnVaux! . VxON Club Member

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    BTTT.

    Done this as i know there was people with the same problem as me and may have not seen this due to 0 replies. :D
     
  3. GSi-R

    GSi-R Well-Known Member

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    I'll edit the title, and put it in the How2 additions Paul;)

    Micky
     
  4. MadOnVaux!

    MadOnVaux! . VxON Club Member

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    Cheers for that mick...thought it had been deleted at first! :D
     
  5. archie

    archie Active Member

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    Also, if you've ever tried to take the heater control panel off before, you may have inadvertently pulled the plug on the back of the heater speed control partly off. I had the same problem with my heater (would only work on full speed) and this turned out to be the problem.

    At least I assume so - I didn't find out until after I'd replaced the resistor as described above. :oops:
     
  6. MadOnVaux!

    MadOnVaux! . VxON Club Member

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    If you pulled the plug off it wouldnt work at all mate...the resistor was your problem here.
     
  7. archie

    archie Active Member

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    I didn't pull off the plug, and never said I did.

    It was partially pulled off, so only the pins at the full-speed end were making contact. I know this because the fan still only worked at full speed after I'd replaced the resistor. Removed heater control panel, pushed the plug back on all the way, job done.
     
  8. johnnyboy

    johnnyboy New Member

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    thanks for that madonvaux check mines out tomorrow
     
  9. calibra_v6

    calibra_v6 New Member

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    also dodgy ignition switch can make fan work intermitantly
     
  10. cavtastic

    cavtastic VxON Cretin

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    also i have found the fuse housing for the heater fan tends to melt. this is the problem i have on mine and said fault goes away if i wiggle the fuse a bit (y)
     

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