When on electric it works for awhile and quits

check the bulbs and fuses and brake light switch

1) You have bad thermostat. Replace both thermostats:
http://waterheatertimer.org/How-to-replace-thermostat-on-electric-water-heater.html
http://waterheatertimer.org/How-to-replace-TP-valve.html

2) Copy following link for troubleshoot resources:
http://waterheatertimer.org/How-to-troubleshoot-electric-problems-with-water-heater.html

3) Add comment dec 2012 and say what you discover.

make sure trailer is level also check voltage at back of unit

Chances are that these receptacles were back wired.
The kitchen should be on a separate 20 A circuit.
See if there are any GFCI receptacles that need to be
reset.
Mark down all the receptacles that are out. Shut off the
power to the house, open the receptacle that is closest
to the panel, If it is back wired, remove those wires and
used the screws on the sides. (replace receptacles if they
look worn out.) After you complete that one, turn on the
power to see if it works. If not,repeat the same procedure
with the next receptacle.

I thik that whoever advised you of an underlying problem is very muich correct. It sounds like you are getting quite a bad short somewere in your system. I would strongly advise not turning things on as you may fry your entire electrical system. I would also get it checked by a qualified electrician. I hope this is helpful.

I'm assuming that the dryer is gas, since both the washer and dryer are on the "same" breaker. I'd try replacing the wall plug before replacing the dryer. If you have a voltage tester, you should see if you are getting an honest 110 volts coming off the circuit. Since the circuit was a problem before, I would test it first and then more on.

First test the hydraulic top pump motor to see if it works.

The odometer is driven by a small electic motor. It receives the same signal the speedometer receives. If the odometer motor is no longer functioning, I'm affraid the entire instrument panel cluster will have to be replaced.
Any other questions, let me know.
Regards,

You can get a manual from www.searspartsdirect online. should have a troubleshooting guide to help you determine cause.

They may need to be on the other way.