[Twopetes]

A couple adds - first agree with several of the other posts to check the inverter and make sure it is turned on.
Second - we had an issue with our Monti 353RL. The inverter was wired to the TV circuit and not the refrig. Check! Thanks. Keystone!
And to help a little. The inverter has an auto transfer switch that switches to battery power when the shore power is disconnected. The inverter has a pass thru circuit that lets 110 vac shore power pass thru and run the frig. The wiring for the frig circuit is connected to the inverter so this circuit is powered whether by shore power or battery inverter. The inverter is plugged into a 110 vac shore power circuit which is where the power comes from when plugged into shore power. Hope this helps. Steve