voltage question?

[Ruthunter]

My fuel pump quit working on my toyhauler so I checked the voltage and it id 9-10vdc. Does the pump have to have 12vdc to work? Also I just installed 2 new 6v batteries thinking that was the problem and it didn't help. I also checked the voltage where it leaves the main board and it reads 12vdc.

[MarkS]

You may have a loose connection some where. Not sure what you are calling the main board. Power Distribution panel? Control panel? I would check voltage at the pump switch.

The pump might be bad. It might be locked up and pulling extra amps which is causing the low voltage.


Sent from my iPad using Tapatalk HD