GENERATOR ON MOTORHOME

The techs at my place say the ethanol in the gas now destroys the diaphragms in the fuel pumps

I had a couple of service guys work on my gen they'd get it running in front of me and when I hit the road it wouldn't run or stay running under load. I fought this for months!

I finally pulled into a CG and called Mobile RV Repair and told him I was going to pay him to STAY there forever if that's what it took to find out what the problem was with the generator.

He walked right over and opened the gen bay and pulled out the fuel pump and showed it to me.
Fuel pump has a diaphragm, known to fail over time. It starts with a very fine line crack in it or rot starts. That gives you the intermittent problems and then it starts to really degrade. Most don't pull it out and check it.

He replaced the fuel pump and also noticed how much fuel line I had tucked under the MH. Said it was WAY too much line. He cut the fuel line shorter and put in new pump.....been working since.

If the tech can't find anything wrong, then I assume it worked for him? Do you have an ESP? If so, en call them to find out or check your paperwork.

kwright wrote:
mY TANK IF FULL. THE SERVICE TECH CAN'T FIX IT, HE TRIED EVERYTHING?? dOES ESP COVER GENERATORS??

I will assume it is an Onan since you did not provide that information.
I will also assume he tested the fuel pump.
If the service tech says he tried everything and he cant fix it you have two choises.
1. Find a competant tech that can at least diagnose the problem.
2. Replace the genny.

mY TANK IF FULL. THE SERVICE TECH CAN'T FIX IT, HE TRIED EVERYTHING?? dOES ESP COVER GENERATORS??

Is your MH gas tank full or at least a half ?
Are you pretty level? If off level too much. Low oil safe will shut down gen.
If too low on gas. Gen will not get its supply.

Must be something you are doing wrong if it runs fine for the service tech. I assume you are taking it to a manufacturers recommended service facility.
I don't kow what you mean by covered.