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The water heater I have has the temperature adjustment dial which looks to me like a potentiometer. Only 2 wires going to it.
There is no way to check for proper operation?
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1997 F-250 PSD crew cab shortbox 4x4 E4OD trans 3.55 gears, aftermarket downpipe EBPV gutted, 20.3mpg, 173,xxx miles
1998 VW JETTA TDI (1.9L turbo direct injection diesel) RC3 CHIP, EGR eliminate, straight pipe, powerplus764 injectors, 53+ miles per gallon! 156,xxx miles
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