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Originally Posted by f5fstop
I do see a problem with the prime in the unit, but not under normal operation. If primed correctly upon initital install, the check valve should keep the unit filled, since it prevents the fluid from flowing back to the reservoir.
However, the auto mode, automatically squirts the fluid onto the windshield from the Hotshot unit. Unless the hotshot unit also has a pump to draw fluid from the reservoir, it would run out of fluid, till you manually pushed the washer switch to push fluid from the reservoir to the unit.
I will call hotshot today, since their technical support website does not work and ask.
The ones equipped on vehicles from GM are incorporated into the entire washer system.
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I believe the hotshot only includes the heating unit, that's why you have to prime it before use, or else you burn it out. I just pulled my old one out and put a new one in - straight swap of the heating unit...still doesn't work. When I pulled the old unit, it still had tons of washer fluid in it, so I don't believe there's a reason to have to prime it all the time. I've checked fuses and they look ok. Swapped the switch and still no luck....
I'm really enjoying my wife's LR3's heated windshield....
