HP 3326A Failing DC offset calibraton

[Zenwizard]

I have an HP 3326A on the bench that I would like to get up and running. I am currently thinking that a few of the small signal relays have gone high resistance and am curious if any one else knows a starting point.

The unit will pass all self test

Start up self calibration will error with error 193 Dc offset failure

If both channels are set to more than 1 volt of DC off set both positive or negative calibration will complete with no issues.

Setting DV off set to 0 does function correctly. So when the unit has aligned its self all is good and working It is just the initial power up configuration is failing alignment.
Has any one run in to this before and any ideas on where to start?

Zen