Chassis power not there

[wndshldgoes]

Chassis power does not come on, have to use battery boost to get it going then runs fine. It is on a 2005/06 Holiday Rambler Admiral F53 chassis.

Is it the battery disconnect switch or something else? Just started doing it on out recent outing. Haven't had time to diagnose it yet, that thing called work is getting in the way.

Thanks for the help in advance

[okcnewbie]

Are you saying the MH won't start without the boost?

If so, sounds like chassis battery and/or alternator. Can you check to see what voltage is at the chassis battery?

Check the voltages; 1) after battery has set idle for a while.
2) with the MH running.

[wndshldgoes]

okcnewbie, when I turn the key on, no power to anything on the chassis/starting side. The house still has power. Then I have to hit the battery boost button and the rig starts and runs fine.