Questions & Answers for: vdc light Water Heaters

...light, and mine is only .85 VDC. According to Bosch online that indicates a bad control box. The same control box problem was pointed to by another contributor in this forum, so that is what I have ...

...VDC going to each solenoid when the unit is trying to light. Then check your valve coils for continuity. Assuming the electrode is sparking, you are getting voltage to both solenoids, and you cannot ...

Nothing happens when I turn on switch. No light on panel. 12 volts getting to tstat very little to eco. Should have 12 vdc there as well.

...VDC, until you replace switch. Is the water heater actually trying to ignite on gas when light is on? If you don't want to pull switch, look for fuse in fuse panel for water heater, or under counter ...

...light must be spent. I am not sure which parts I need to replace. Thanks When you turn it on and hear the ignitor clicking, test for 12 volts at power wire to gas valve. If your not getting 12 VDC to ...

...light and probe terminals on Therm & ECO for 12 VDC power while running. When it shuts down and wateris not hot, test for voltage again at those terminals, If you have 12 volts to side of therm ...