I plugged up my 50 amp power. The icemaker is running and the tv will come on but none of the lights, fridge or steps will work. Is there another switch or reset or something I'm missing. The coach will start.

Sounds like you have lost power from your house batteries . The house batteries should be in the rear hatch on the passengers side . There may be a master switch there . You should be getting power from your converter charger on shore power . Check the breaker box to see if you have power to your charger.

In the photo , the breaker box is on the left of the middle and the charger is on the far right . Your's should be similar at the foot of the bed .

Update :
Dale found the problem . There was a bad cable connection on a main breaker that was added next to the house batteries . The breaker was bypassed , but he is going to replace it with a new one and hook it up correctly.

All fixed

It is nice when the fix is posted after a member post a problem.