Question about Electric Intermatic Wh 21 Water Heater Timer
This is an old timer and we are not sure by the instructions on the inside door if the water heater is on or off when the red light is on.
Copy following link for Wh21 manual, troubleshoot walk-thru, and replacement tripper identification.
The red light is a power indicator, and this indicates that timer has 240Volt (208-250Volt) power available, but does not indicate if water heater is ON or OFF.
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Posted on Aug 13, 2012
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