MEP 803 wont start

Hi, my MEP-803A won’t start. At first, I thought the issue was with the batteries since I only hear a click when trying to engage the starter. I fully charged the batteries, but the problem remains.


I was advised to try the Dead Crank function, and when I do, the engine cranks normally and I can hear the fuel pump ticking. The generator was last started about three months ago. I have also tried the battle short switch


Any suggestions on what to check next for troubleshooting?

2mas-

Is the Estop pushed in?

Also check other items on the control panel. Are all the other gages. lights etc. responding when you turn the switch to prime / run?
I assume you are not hearing the fuel pump running with the dead crank in the normal position and the S1 switch in Prime / Run?

Emergency stop is not pushed in, its pulled out. I checked the lights and the they and the meters works. When I turn to prime/run i hear fast «ticking» noise from the fuelpump.

So from the control panel everything seems normal except for a lack of cranking ability.
So that would point us towards the K2 cranking relay being GOOD because the dead crank works. That leaves switch S1, the K12 fault relay, K16 crank disconnect and possibly the S14 frequency trip switch as well.
You could also try using the battle short switch, I think you can bypass s14
I'd say next step is to look for 24V on pin 2,4,6 and 8 ( they are all tied together ) of S1 with the dead crank in the normal position, then look for 24v pin 7 of S1 when cranking.

What kind of S1 switch do you have. Post a picture of it.

As Ray posted: I'd say next step is to look for 24V on pin 2,4,6 and 8 ( they are all tied together ) of S1 with the dead crank in the normal position, then look for 24v pin 7 of S1 when cranking.

Just because the S17, (E-Stop) is pulled out, doesn't mean its good. TEST it. Than you know.

S1 in the run position. One lead of your DMM on ground, the other lead to both sides of S17. You need to see 24VDC on both sides.