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Old 22nd January 2019, 09:00   #1
sewerman
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Default Saloon Heated Screen

Hi before i go dissembling the rear to look for broken connections is there any other reason ,twin relays? , that the bottom of my screen heater doesent work, radio is fine by the way,

Thanks Scott

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Old 22nd January 2019, 15:28   #2
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Usually one of the wires on the glass has been scratched.

There is a metal paint to make good the break.
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Old 22nd January 2019, 15:47   #3
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Quote:
Originally Posted by COLVERT View Post

There is a metal paint to make good the break.

Any details of that please?
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Old 22nd January 2019, 16:16   #4
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Halfords sell one by Granville , £11.49 electro connector paint I think , probably get it cheaper elsewhere

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Old 22nd January 2019, 18:25   #5
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Cheers magnifying glass time I think or would the continuity setting on the multimeter do it?

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Old 22nd January 2019, 18:46   #6
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Its near impossible to check with a multimeter as you cannot isolate each element to check them separately .
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Old 23rd January 2019, 20:30   #7
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Quote:
Originally Posted by sewerman View Post
Cheers magnifying glass time I think or would the continuity setting on the multimeter do it?

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Continuity setting is next to no use for this job.
Far easier is to switch the heated window on, then use the multi meter on volts, reference to car body. One side of the rear window will be at battery volts (around 14 hopefully), and the other side at 0 volts. Where a heater element is broken the meter will read battery voltage to the break, then 0 after (on a working window the voltage will be about half battery in the middle).


Although in your case, think I would start looking at the strip down the side of the window as it looks like all lines below the mid point.


The silver conductive paint is quite good, but I always put a strip of insulation/masking tape either side of the lines I am repairing as it is near impossible to get a straight narrow line, like the rest of the screen, freehand.



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