Thor Forums

[gmc]

You mentioned a C02 code... From what I can find - the error codes begin with E... E02 is low battery voltage:
"Low battery voltage shutdown (Inverter/charger error)Battery voltage has dropped below 10.5 V for 12 V inverters or below 21 V for 24 V inverters.
Check for a dead battery or poor battery connections."

If the batteries are fully charged - then they aren't holding a charge... Not an uncommon occurrence with new RV that may have been on dealers lot for a while without proper care of the batteries... (allowed to run down, not recharged, etc...)

Many auto parts stores can do a load test - though you may need to remove the batteries... At less than 3 months old - I would see if the dealer will replace.

How long you should get is an 'it depends' answer - based on whether the fridge is starting hot or cold... the outside temp... how often it is opened... but 45 min is excessively low.

Also seems to be dying too quickly for the generator start to kick on... The battery is going from 12v (gen start voltage) to 10.5 (inverter off voltage) before the genny can start.