2013 Greyhawk 31 FS house battery question

[DevilFish]

We are the recent owners of a 2013 Greyhawk 31 FS. Took it out for a shakedown dry camping trip just this last weekend. After generator on all day till quiet time, I awoke early Sunday am to almost dead house battery. Battery levels only indicated 1/3 Power left. Turned off vent fans. Had only water pump on, and bathroom and bedroom vent fans running. Fridge was on "auto" setting. Tried to manually switch fridge to LP but it would not hold and blinked "C" on display. When we got up a few hours later, battery said 3/4 full but fridge still said "C". Very soon after, reading showed batter now empty of charge. House battery completely dead. Questions:

1. Would the 2 vent fans running at high setting draw that much from the house battery to drain them that much?

2. Does Norcold "auto" fridge function defer to a/c power vs LP. Could that have been the culprit &I need to insure the manual switch to LP setting vs auto when on battery?

3. Bad coach battery?

4. Something else I should be looking for?

Thanks for any and all assistance.



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[Jopopsy]

I believe the Norcold in your unit only operates on LP or Genny/Campsite power. It needs 12v for its processor board, but not to actually perform any cooling.

[Shakedown St.]

Originally Posted by Jopopsy

I believe the Norcold in your unit only operates on LP or Genny/Campsite power. It needs 12v for its processor board, but not to actually perform any cooling.

Yep, auto just switches over from LP to shore/gen power and vice versa.

If I were to run my fans all night, I'd probably wake up with one bar on my battery indicator. Certainly not a dead battery, considering I always run my genny for awhile at night while boondocking just to top off the battery. The only time I've ever had a low voltage code on my refrigerator, is while boondocking in freezing weather while running the furnace all night.

I would connect to shore power if possible, to fully charge. Check your battery with a meter....that should narrow things down.

[jimp]

Have you checked the water levels in the battery? The fluctuations in battery charge level is weird/unusual. Might check all the battery connections as well.

[UpstateNY-31FS]

Don't forget to shut down the antenna booster too. If you want to save battery power.


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