Attwood WH switch causing 15 amp fuse to blow
Wife took a hot shower fine, I tried but no power to the water pump. Found blown water pump fuse 15 amp and replaced it. It blew again and I had no lights above the stove for level readings. Found bl...
Forum Discussion
Gary,
Those readings sound opposite to me. A typical 12 VDC water pump will pull close to 10 amps as it approaches cut-out PSI. More for larger pumps.
Also, I would sure separate the two functions-- power each from its own fuse.
I am also puzzled by what component of the water heater could be drawing 11 amps. The igniter only works for a couple of seconds. The gas valve should pull only a small fraction of that. Have you traced the wires from water heater switch to water heater to make sure you don't have a nicked positive wire?
Those readings sound opposite to me. A typical 12 VDC water pump will pull close to 10 amps as it approaches cut-out PSI. More for larger pumps.
Also, I would sure separate the two functions-- power each from its own fuse.
I am also puzzled by what component of the water heater could be drawing 11 amps. The igniter only works for a couple of seconds. The gas valve should pull only a small fraction of that. Have you traced the wires from water heater switch to water heater to make sure you don't have a nicked positive wire?
