Operating Instructions and Installation Instructions

Fault Cause Rectification
Gas operation
When switching on, the
heater does not operate.
No 12 V supply voltage.
Window open.
–
–
Check the power supply (operation voltage min. 10.5 V).
Check the water heater fuse
(refer to mainanance “Fuses”).
Close any windows above the cowl.
–
–
–
When switching on, the heater
does not operate and the red
lamp lights up after approx.
30 secs.
Heater operates for a prolonged
time and then the red lamp
lights up.
Cowl cover fitted.
No gas supply.
Incorrect gas pressure.
Air in the gas supply.
Over temperature sensor
has responded.
–
–
–
–
–
Remove cowl cover and / or clear any obstruction.
Check gas valves and gas bottle.
Check gas valves and gas bottle.
To unlock (and purge air), switch off the appliance, wait
5 minutes, and switch on again.
Check water content, refill if required (close drain valve).
To unlock, switch off the appliance, wait 5 minutes, and
switch on again.
–
–
–
–
–
–
Electrical operation
When switching on, the
heater does not operate.
No 230 V supply voltage.
Over temperature sensor
has responded.
Too slow warm-up in
position 850 W.
–
–
–
Connect the caravan to the site supply and / or check
residual current circuit breaker.
Check water content, refill if required (close drain valve).
The electrical heating element is fitted with an excess
temperature cut-out. In event of a fault, switch off at the
control panel, wait 10 minutes, then switch on again.
Please contact the Truma Service.
–
–
–
–
Water supply
Water drips from the
safety/drain valve.
When opening the cold water
tap, hot water tap comes out.
Water pressure to high.
Hot water flows back
through the cold water
supply.
–
–
Check water pressure (max. 2.8 bar), use a pressure
reducer when connected to central water supply.
Fit a no-return valve in the cold water supply
(refer to installation instructions “Water connection”).
–
–
If this does not solve the problem, please contact the Truma Service.
Trouble-shooting list
7