fridge on auto, switching to gas while hooked up?

[PancakeBill]

Odd thing going on.  Our fridge, set to auto, we are hooked up on electric, but it is switching over to gas.  Then switching back to electric.  Wondering if it might be power draw is pulling voltage below a level?  Haven't had a chance to monitor yet.

OR

Could it be the control board?  Original Dometic in a 2000 unit.

It is model NDR-1292.  Looks like it uses either 2 or 3 boards. 

 

[Rene T]

Do you have a Progressive Surge protector?

 

[Hammster]

Do you have a Progressive Surge protector?

To add a bit more to Rene's question. If you do have a Progressive surge protector (EMS) then it will shut down AC supply to your rig if voltage falls below a certain level. 104 VAC I believe is the cutoff. We experienced that in a WA state campground with low voltage and our Progressive EMS.
I imagine other manufacturers of EMS type protectors have a similar protection.

 

[PancakeBill]

Not that I am aware of unless it is built in.  Right now straight from post to coach.

Update, I checked voltage at fridge, and 0, reset breaker and it is back on.  Strange, last night I checked the breaker and it did not seem to be tripped. 

Will keep an eye on things.