Breaker Issues in Upper 90's

[Ray]

Hey Folks,
Im in the Hot and Sunny South. I'm plugged up to 50 amp service. My upper dash
gauges... Leg One Volts reads left of 60 volts, Leg Two Volts reads 125...
My Leg One Amp gauge reads 0, Leg two reads normally as it fluctuates to the
pull of the air conditioners and appliances... If I run all three air
conditioners and I turn on the water heater it kicks the breaker out on the
pole. I can run two air conditioners and the water heater ok... It just seems
that everything thing is on Leg Two... Never had this problem before now. I've
always been able to run everything at once with no issues... Help if you can...
Thanks

Ray and Denise
92 Wanderlodge
Nashville TN