2008 inferno electrical issues

Not much to go on but as a WAG. You have solar power for the batteries and some 120V units need 12V for controls and don't work right when the solar power ends.

Start by checking AC voltage and DC voltage. Load check the batteries. Could also have low AC voltage in the evening.

Sounds more like he is having an a/c switching issue as he states that the shore power is good. I cannot help on that one.

QCMan wrote:
Sounds more like he is having an a/c switching issue as he states that the shore power is good. I cannot help on that one.

Llittle info and lots of possibilites. I agree but doubtful the pedestal power was checked at the time he has the problem. It's likely his problem but...

OP Recommend you buy a plug in 120V meter and check the voltage inside. You can buy an inexpensive VOM from Harbor Freigh but be aware that probing 120V AC can be dangerous should not be done without full awareness of safety procedures.

Thoughts - try a different site. What does "fades to battery mean"? Do you hear any relays clicking?

check the output on the converter when it is dark outside.

check the battery voltage when it is dark outside.

Welcome to the forum. I'm glad you found us.

Have you had any luck yet?

Sounds like either the converter, battery or both have failed. As Don said, you need to monitor the voltage when this occurs.