MEP 804A reverse power light on

[Tony 14]

My mep 804a reverse power light won't turn off

 

[kloppk]

When running and the is contactor OPEN is the light on AND you can't reset it on the Fault Indicator panel?

 

[Tony 14]

When running and the is contactor OPEN is the light on AND you can't reset it on the Fault Indicator panel?

Yes the contactor is open I able to reset it but it comes back on.

 

[kloppk]

I assume you are not going to be using the generator in parallel with another generator.

I also assume you NEED this generator putting out power now due to no utility power.

If so, you might try the following.
Mark the present setting of the Load Sharing Adjust.
Loosen the locknut on the Load Sharing Adjust potentiometer and adjust it 90 degrees clockwise and try the generator.
If it's still throwing Reverse power fault then turn in 180 degrees counter clockwise. (90 degrees counter clockwise from its original setting)
Try the generator again.

If it's still throwing the Reverse Power fault put the Load Sharing Adjust back to it's original position and tighten the lock nut.

Post up your results.

 

[Guyfang]

If the test Kurt suggested doesn't change anything, try this, and @kloppk , take a look see that I am right, because I am not at my home computer. BUT, I seem to remember, this fault. I pulled out the reverse power relay, (K9) and then turned the S1 to the run position. We had the same problem and I pulled it out and the light stayed on. It was the A2, (fault indicator.)

 

[kloppk]

To see if it's a faulty Fault Indicator A2 you could disconnect the wire going to K9 terminal 6 and isolate it. Wire number 208A.
That wire is the Reverse Power fault trigger from K9 to the Fault Monitor. If you disconnect the wire and the Reverse Power Fault still appears then the Fault Monitor itself is bad.

 

[Tony 14]

I assume you are not going to be using the generator in parallel with another generator.

I also assume you NEED this generator putting out power now due to no utility power.

If so, you might try the following.
Mark the present setting of the Load Sharing Adjust.
Loosen the locknut on the Load Sharing Adjust potentiometer and adjust it 90 degrees clockwise and try the generator.
If it's still throwing Reverse power fault then turn in 180 degrees counter clockwise. (90 degrees counter clockwise from its original setting)
Try the generator again.

If it's still throwing the Reverse Power fault put the Load Sharing Adjust back to it's original position and tighten the lock nut.

Post up your results.

View attachment 933125

I'm not using in parallel with another generator I'm getting it ready in case I need it in a couple of days.

I will try what you suggested in the morning I'll let you know.

Thank you

 

[Tony 14]

I'm not using in parallel with another generator I'm getting it ready in case I need it in a couple of days.

I will try what you suggested in the morning I'll let you know.

Thank you

I went to try what you suggested crank it up the light didn't come on, generating power. tried it a few time everything appears to be working thank god I didn't need it . I'll be sure to try what you suggested if it happens again.

Thank you
Tony