Rear Demister working or not

by **Lib 3.0LR** » Thu Apr 12, 2012 7:19 pm

Hi Guys. Just wondering if there is any other way to check if your rear demister is working (Wagon) I know I can wait for the windows to fog up, but any other way :?:

I just had the car re-tinted and I am just curious if it’s working right. I don’t want to find out weeks down the track and start arguing with the guy. :shock:

by **garbo41610** » Thu Apr 12, 2012 7:36 pm

A multimetre would probably be your best bet I would think.

by **Lib 3.0LR** » Thu Apr 12, 2012 7:40 pm

garbo41610 wrote:A multimetre would probably be your best bet I would think.

OK put it on the 2 points and test it :wink:

thanks Phil

by **HoFF** » Thu Apr 12, 2012 7:44 pm

Check your radio reception to George

by **Lib 3.0LR** » Thu Apr 12, 2012 7:48 pm

HoFF wrote:Check your radio reception to George

Radio works fine Tom

tint looks good also

by **HoFF** » Thu Apr 12, 2012 7:51 pm

Good stuff. What did you end up going with, 20%?

by **Lib 3.0LR** » Thu Apr 12, 2012 7:52 pm

YEP 20%

by **HoFF** » Thu Apr 12, 2012 8:00 pm

Nice!!

Glad to be of some influence

by **senator** » Thu Apr 19, 2012 1:12 pm

Get one your kids to lick the terminal while you flick the switch……. Allot easier than using a multimeter cause you get instant audio (scream) confirmation if it works….. :mrgreen:

by **Robbks** » Thu Apr 19, 2012 1:22 pm

why do you think it would not work?
all the cutting is (should be) done outside the car.
then it's just glued on and shrunk to size

by **Lib 3.0LR** » Thu Apr 19, 2012 7:27 pm

Robbks wrote:why do you think it would not work?
all the cutting is (should be) done outside the car.
then it's just glued on and shrunk to size

Just wondering as they took the old to put the new on

by **al_cam** » Wed May 02, 2012 1:43 pm

Put your multimeter on volts, switch it on and check you have 12V (approx).

But...

If they pulled off old tint and by some remote chance broke all the elements, voltage test won't easily tell that. Well it will - if it's working the voltage will be lower than open circuit. If you can tell the difference

You can make sure by measuring the resistance of the element

So turn off the demister, check that it's definitely off by checking for volts again or if the demister is for sure also the radio antenna, unplug one of the connectors that attaches to the element (carefully) then change your multimeter to resistance and check measure across the element. If it is completely stuffed you will get infinite or Megaohms. if it's mostly intact it will be quite low, less than 100 ohms.

Don't have the Multimeter on resistance when you put the probes on something that's live, it will probably go phut!

Luck,
AL.