If the rear window heater isn't working, it could be due to a blown fuse, a faulty switch, or damaged wiring. Additionally, the heating elements in the rear window itself might be broken or disconnected. It's important to check the fuse first, as it's the simplest issue to diagnose and fix. If the fuse is fine, further inspection of the wiring and heater elements may be necessary.
The rear window de fogger is simply an electric heater. It heats up the glass and water vapor evaporates off.
why doesnt my heater work on my1985 BMW
Check to make sure your rear window is not down a little bit. I could not get the rear w/s wiper or the rear window defroster to work until I lowered the rear window and then closed it again. Problem solved. Hope it works for you, too !
There is a switch on the dashboard to turn on the rear window defroster (also called a rear window defogger in areas that don't have frost). If you cannot locate the switch, take the vehicle to a local dealer of that product, and someone will be happy to show you where the switch is located. If you locate the switch and the defroster will not work, there is likely a blown fuse or faulty wiring, in which case your local dealer will be even happier to repair it for you - for an appropriate fee.
its probably broken or not plugged in
A pool heater typically uses either gas or electricity to generate heat, which is then transferred to the pool water through a heat exchanger. The heated water is circulated back into the pool to raise the overall temperature. The heater can be adjusted to maintain a desired temperature setting for the pool.
because it's broke
there is a brake in the contacts on the back window
If the rear window is not fully closed the rear wiper will not operate.
Could be: Low coolant in the radiator - or - thermostat stuck open - or - heater core plugged.
maybe its becuase you have the tank too close to a window or if you have a heater in the tank to high, try moving the tank somewhere from it and see what happens. if not try putting the heater a few degress lower for it, and if that doesnt work either well good luck.
Low coolant? Bad thermostat? Heater core plugged,restricted or airbound? Heater control cable or valve not working?