Originally Posted by SweetOleBill
If I turn on the water heater on gas it works perfectly.
If I turn in on using electric I only get barely warm water.
How much time are you allowing for the water to heat? It takes longer on electric than gas. Do you have two separate switches inside for the gas and the electric, or just one for the gas?
If you have the Suburban brand water heater, this FAQ may help:
Suburban's electric switch and much more
Have you ever accidently turned on the electric heating element without water being in the heater (or had the bypass valves set wrong)?