Water Pump - 12V works, 110V blows a fuse
My water pump, Shurflo, in my 2007 Fleetwood (popup) blows a fuse (10A blade/inline fuse) when plugged into shore power but runs fine on 12V. Everything on 110V works fine, except the water pump. Th...
Forum Discussion
Fellows some of you need to ahem....
brush up on electrical theory
The lower the voltage in direct current, the less the amperage. DC does not have a variable Power Factor.
The HIGHER the voltage the more amperage flows through a resistance.
Check your voltage with the rig plugged in, and converter charging the battery.
A BORDERLINE pump electrical short within the pump or clogged pump can easily cross the fused threshold and fail the fuse if voltage is raised by 2-volts.
Time to run the pump for 2-minutes with the sink tap wide open, shut off the pump then -carefully-feel the outside of the pump looking for hot spots. A bad intermediate bearing between motor and pump can cause a pump to run borderline on amperage.
brush up on electrical theory
The lower the voltage in direct current, the less the amperage. DC does not have a variable Power Factor.
The HIGHER the voltage the more amperage flows through a resistance.
Check your voltage with the rig plugged in, and converter charging the battery.
A BORDERLINE pump electrical short within the pump or clogged pump can easily cross the fused threshold and fail the fuse if voltage is raised by 2-volts.
Time to run the pump for 2-minutes with the sink tap wide open, shut off the pump then -carefully-feel the outside of the pump looking for hot spots. A bad intermediate bearing between motor and pump can cause a pump to run borderline on amperage.
