Operating Instructions and Installation Instructions

16
Trouble-shooting list
Fault Cause Rectification
No LED illuminates after
switching on.
No operating voltage.
Device fuse or vehicle fuse
defective.
If window switch present –
window above cowl open.
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Check 12 V battery voltage, charge battery if necessary.
Check all electrical connections and lines.
Check equipment 1.6 A fuse (see fuses) or vehicle fuse,
replace fuse if necessary.
Close window.
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Red LED illuminates
approx. 15 sec. after
switching boiler on.
Gas cylinder empty.
Gas cylinder or quick-clo-
sure valve in the gas line is
closed.
Combustion air infeed or
exhaust gas outlet closed.
Battery voltage is too low
< 10.5 V.
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Replace gas cylinder.
Open valves and check gas infeed.
Remove the cap from the cowl or open the deck cowl.
Check openings for soiling (slush, ice, leaves etc.) and
remove if necessary.
Charge battery!
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After a long period of opera-
tion, boiler switches to fault
and red LED illuminates.
Overtemperature monitor
has activated.
Gas pressure regulator
iced up.
Butane content in the gas
cylinder too high.
Battery voltage is too low
< 10.5 V.
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To unlock, switch device off, allow to cool and then switch
on again.
Use de-icing system controller (Eis-Ex).
Use propane. (At temperatures below 10 °C in particular,
butane is unsuitable for heating purposes.)
Charge battery!
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Green and red LEDs
illuminate as soon as boiler is
switched on.
Faulty electronic system.– Please contact the Truma Service Centre.–
Electric operation:
The water does not become
warm.
Operation without water;
over-temperature fuse cuts
off the heating element.
– Switch off, wait 10 minutes, fill with water, switch on.–
Water supply
Water taking an extremely
long time to heat up.
Water container furred.– Descale water system (see maintenance).–
Water running out, cannot fill
boiler.
Safety/drain valve open.– Close safety/drain valve.–
Cannot empty boiler, even
though safety/drain valve
is open.
Water dripping from draining
connection of safety/drain
valve.
Safety/drain valve draining
connection blocked.
Venting hose is closed.
The elbow connection on
the boiler is twisted.
Water pressure too high.
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Check opening for soiling and remove if necessary.
Check opening (see above).
Check hose for kinks and remedy.
The venting hose on the elbow connection needs
to point upwards.
Check pump pressure (max. 2.8 bar). If connected to a
central water supply (rural or urban connection), a pressure
reducer must be used, which will prevent pressures higher
than 2.8 bar entering the boiler.
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If these measures do not remove the failure, please contact the Truma Service Centre.