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Topic: HBC fan FIX (Read 543 times) |
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Gazza_UK
Full Member
2.3 Ultima auto :-)
Posts: 166
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HBC fan FIX
« on: Nov 24th, 2009, 7:23pm » |
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Hi All
Been away for a while but have a good fix to pass on 
My heater would work fine then stop then work . . . . 
Go over a bump work over another bump stop . . you get the idea . . .
So armed with a 12v LED I connected it to the two wires on the left side of the HBC looking from front of car ?
This goes to the Heater fan
bottom plug in pic below
So when the heater is on and working the LED would Light up and the fan would work so the idea was if the led was on and no fan then its the motor playing up
But after a few weeks this proved that heater off and LED was also off
Ok so the fault was not the fan 
So next test was LED to the right side (12v input ) and this stayed on all the time even with the fan not working 
Then as I touched the plug the Fan started ( this was pure accident as I left the heater switch on and no fan )
and the Heater motor came to Life 
So armed with my Dremel and a small grinding stone
I went and cleaned all three conection plugs on the HBC
Dont forget to blow out all the old filling then I sprayed electrical contact cleaner ( maplins ) onto the Plugs
And now after 3 weeks its still working fine fingers crossed
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