15
Gas operation
• No control lamp lights
up when the system is
switched on (winter and
summer mode).
• The green indicator lamp
comes on when the equip-
ment is switched on, but
the heater is not operating.
• The red monitor lamp flash-
es after the heating system
has been switched on.
• About 30 seconds after the
heating has been switched
on, the red monitor lamp
lights up and remains
steady.
• Heating switches to fault
mode after an extended
period of operation.
Electrical
operation 230 V
• The green indicator lamp
on the control panel illu-
minates when the unit is
switched on, the yellow in-
dicator lamp on the power
selector switch does not
illuminate and the heating
does not become warm.
Water supply
• When the heating system
is switched off, the elec-
trical safety/drain valve
opens.
– The valve remains open
even after the heating
has been switched on.
• The electrical safety/drain
valve will no longer close.
– The valve remains open
even after the heating
has been switched on.
• Water dripping from the
electrical safety/drain valve.
– No supply voltage.
– Device fuse or vehicle fuse
defective.
– The temperature setting on
the control panel is lower
than the room temperature.
– Open window above cowl
(window switch).
– Battery voltage is too low
< 10.5 V.
– Gas cylinder or quick-clo-
sure valve in the gas line is
closed.
– Air feed interrupted.
– Hot-air outlets blocked.
– Gas pressure regulator
iced up.
– Butane content in the gas
cylinder too high.
– No supply voltage.
– Device fuse defective.
– Overheating switch has
triggered.
– Outside temperature below
4°C.
– No 12 V power supply at
the drain valve.
– Outside temperature below
8°C.
– No 12 V power supply at
the drain valve.
– Water pressure too high.
– Check battery voltage (12 V).
– Check all electrical plug connections.
– Check device fuse (see Maintenance).
– Check vehicle fuse.
– Select higher room temperature at the control panel.
– Close window.
– Charge battery.
– Check gas feed.
– Check cowl for possible coverage.
– If being used on boats, open the deck cowl.
– Check individual outlet apertures.
– Use de-icing system controller (EisEx).
– Use propane (at temperatures below 10°C in particular,
butane is unsuitable for heating purposes).
– Check 230 V supply voltage and fuses.
– Check device fuse (see Maintenance).
– Reset overheating switch (see Maintenance).
– Switch the heating on (at temperatures of about 4°C and
below the drain valve will open automatically).
– Check 12 V supply voltage and fuses.
– Switch the heating on (without heating operation, the drain
valve will not close again until temperatures above 8°C have
been reached).
– Check 12 V supply voltage and fuses.
– 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.
Trouble-shooting list
Fault Cause Rectification
If these measures do not lead to the rectification of the fault, in principle we would ask you to contact
Truma After-Sales Service.
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