My Electrolux rm4206 keeps on tripping on 240v

Try condenser if not it might be loss of electrical if in area of drop on voltage check what voltage supply you have or try a different soket hope this helps.

Try 1,000 Volts, proceeding up to 10,000 Volts. I'm sure something will happen.

welder drawing high current.sounds like a earth problem with the house or the unit.

l have a 2 way electrolux ram 23a fridge and would like the manual for it

Breaker could be bad.
Let's do a quick check and save you money.
Open top cover on water heater and push in red reset button that might be tripped.
If reset is tripped, water heater should turn ON.
If reset will not reset, then replace upper thermostat:
http://waterheatertimer.org/How-to-replace-thermostat-on-electric-water-heater.html
If reset is not tripped out, then it is OK, so test two top wires on upper thermostat.
Use cheap multimeter from home center, and set dial to 240-250-277 VAC.
Test across top two screws on upper thermostat to see if you have 240Volts.
To do full troubleshoot on ordinary tank electric water heater takes 30 minutes and multimeter
http://waterheatertimer.org/How-to-troubleshoot-electric-problems-with-water-heater.html

If water heater is not receiving 240V, then the breaker is suspect, or a wire between breaker and water heater is loose.
See basic water heater circuit
http://waterheatertimer.org/240-v-water-heater-circuit.html

Now let's look at circuit breaker:
Mark suspect 240V breaker.
Identify all your breakers, and also mark another 240 Volt breaker that is same amperage as water heater 240V breaker.
Turn off main breaker.
Take front panel off breaker box.
The wires and lugs on main breaker are HOT, so stay away from that area.
http://waterheatertimer.org/See-inside-main-breaker-box.html
Suspect breaker has 2 wires coming from breaker.
See if one or both wires are loose, and then tighten.

If wires are tight, then move these wires to the other 240V breaker that is rated for same amps as water heater.
Now turn on main breaker.
Put ear against water heater tank to hear bubbly fizzing sound.
This will identify if circuit breaker is bad, or if water heater needs a full troubleshoot.
It is not a good idea to run two 240V appliances on same 240V circuit breaker, so you may have to decide one or the other appliance until you can replace breaker.
Instructions to replace circuit breaker:
http://waterheatertimer.org/How-to-replace-circuit-breaker.html

Add a comment for more free help.
Also take advantage of fixya phone service.
For a price, fixya expert speaks with you over phone while you work on water heater circuit.

If I understand correctly, your water heater circuit tested for 240 Volts.

1) If circuit has power on one leg of the 240V circuit, water heater can appear to have electricity, but won't turn on since 240V needs both legs to complete the 240V circuit. Solution: test for 240 across top two screws on upper thermostat.
http://waterheatertimer.org/B220C.html

2) ECO reset button tripped on upper thermostat. Solution, push in reset button. If reset will not reset, then replace upper thermostat. I usually replace both upper and lower thermostats at same time: cost $28. Buy parts from home center or hardware store. Be sure to put factory-insulation and covers back so thermostat is not exposed to cooler outside temperatures, that cause hotter water than set point.
http://waterheatertimer.org/How-to-replace-thermostat-on-electric-water-heater.html

3) If ECO reset button keeps tripping, then keep resetting until you can test water heater parts. Spend 30 minutes and do complete troubleshoot on tank.
Buy cheap multi-meter from home center. When test calls for checking voltage, rotate dial to 240-250-277 VAC. When test calls for checking continuity or elements, rotate dial to Ohms (upside down horseshoe is ohms).
http://waterheatertimer.org/How-to-troubleshoot-electric-problems-with-water-heater.html

I have a unit for sale

Probably a broken bake element.

The Rm4206
has to be dead level to work on mains electric, your caravan may be slightly out of level on your drive.
Put a mini level on top of it and try again.

remove the fridge from caravan, now turn upside down and leave for as long as possible. what this does is get rid of any air locks in the gas. once left for a month or too turn back and leave for a day to setal and refit to caravan.this should solve your problem, it has been tried and tested on our caravan and worked. (This will not work on a domestic house fridge because they work on a different system)