Water Heater Not Working

[coogs6]

HOT WATER HEATER
Hi, My van (3 years old) is fitted with a Gas/Electric Suburban hot water heater. I am having problems with the water not heating hot enough, this is only when operating on 240 volts, as the gas operation seems ok. I am thinking that the thermostat may need replacing or can someone tell me if there is any adjustment that can be made to the thermostat. Thank you.
Graeme

[Terry]

Hey Coogs6! Welcome to the forum. Do you have a model number on your water heater? I assume you have one of those down under models not sure if they are the same as ours. Personally mine does not have an adjustable thermostat.

[Jagiven]

Have you checked your circuit breakers? If you tripped one you might be only getting half the volts.

[coogs6]

Thank you Terry, I have since done some checking and found out the thermostat is not adjustable, I'm not too sure what to do. the water heats up ok but it's not very hot. I will probably just have to stick to gas which is ok.
Graeme

[coogs6]

Thank you, the circuit breaker is ok.
Graeme