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Ok crank issue at S1 solved. I had the engine compartment crank switch off.....lol. So back to the E2 fuel pump. I have 25 volts at TB-5 at terminal 1&2. 25 volts at TB-4 terminal 12. Have 24 volts at E2 pump plug when putting my multimeter negative on battery negative and positive on one of E2...

I checked continuity on the red button and it checked out good. Will do the other checks you mentioned when I get home. Thanks

Emergency out is out.

Ok so I tried troubleshooting this today and now im having a S1 crank issue with no panel lights. This was all working the other day after I fixed the wiring. Checked the FU 1 30 amp its good. It cranks over from the engine compartment but not S1. Nothing has changed. Tried resetting the 7.5...

Thanks

Ok will do. Back to the other question I had. Will the pumps run without fuel in the tank and the lines? Thanks, Jason

I unhooked the 2 pin on both pumps and checked with S1 in prime for main them prime for aux. That's where I got 1/2 volt. I will trace out the wiring and let y'all know what I find. Thanks, Jason

The "no fuel" light? If so no its not on unless I hit the test light switch. Checked voltage at both pumps with then in their perspective S1 position and get .5 volts. 1/2 volt.

I got all the chewed wires fixed and my test lights work and it turns over but the fuel pumps aren't working. I have no fuel in the system because the tank needs cleaning. Will the fuel pumps run dry without fuel or is the float telling them not to run? About to go check voltage at pumps...

I found my problem I believe. This unit sat in a field on a pallet for a year since last run. A rat built a nest and chewed close to 20 small wires so I'll be fixing them and go from there.

It came with manuals but what is this TM you speak of? Thanks, Jason

Thanks this helps a bunch.

Thanks. Do I check voltage with relay still installed or pull it out and check the pin slots?

Dead crank and panel crank same results.

The green panel lights do come on. I replaced a 2 amp fuse that was bad behind the control panel under the 7.5amp push in.

i just aquired a MEP803A with 45 hours on it. Bought 2 new batteries and get no crank from either locations. No prime also. The green lights come on with no prime pump and no crank. Jumped the solenoid and it spins. I also get no test lights except for battle and circuit open or closed lights...