Bank manager II

[wmaron]

I have a unit that made a low beeping and error code 1-EE until taking. That. Cover off and finding a nut off of board mounting that appeared to have ground circuits. Once the. washer was moved the unit stopped beeping thank someone it had gone on for two days. Is that all that was need or is there more to do or check?
Thank you,
Bill

[Coulomb]

If you loose a ground it will have consequences.

Check the other measurements to make sure they are reading as expected.