Hot Water Heater Valve
10-21-2010, 01:25 PM
#1
Drifting
Thread Starter
Hot Water Heater Valve
I have a 1979 L82. Is the hot water valve to the heater normally open or closed. Does the vacuum open the valve or close it?
10-21-2010, 02:11 PM
#2
Team Owner
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Yes. Opens and closes by vacuum when operable. Open for heat and defrost when you want warm air. Closed for VENT and AC.
10-21-2010, 02:45 PM
#3
Safety Car
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Yep, vacuum holds it closed. The temp switch needs to be ON cold. Not close but ON.
In this pic I had handy, look past the wiring and you'll see something with a cable on the heater box. This is the vacuum SWITCH that controls the vacuum VALVE under the hood.
In this pic I had handy, look past the wiring and you'll see something with a cable on the heater box. This is the vacuum SWITCH that controls the vacuum VALVE under the hood.
