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Trumatic C 4002 Manual

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Trouble-shooting list
Fault Cause Rectification
Gas operation
• No control lamp lights
up when the system is
switched on (winter and
summer operation).
– Device fuse or vehicle fuse
defective.
– Open window above cowl
(window switch).
– Charge battery voltage (12 V).
– Check all electrical plug connections/fuses.
– Close window.
• The green indicator lamp
comes on when the equip-
ment is switched on (using
the ZUC timer), but the
heater is not operating.
– Open window above cowl
(window switch).
– Close window.
• The red monitor lamp flash-
es after the heating system
has been switched on.
– Warning! Battery voltage is
too low (< 10.5 V).
– Charge battery!
• About 30 seconds after the
heating has been switched
on, the red monitor lamp
lights up and remains
steady.
– Gas cylinder or quick-clo-
sure valve in the gas line
is closed.
– Air feed interrupted.
– Check gas feed.
– Check cowl for possible coverage.
– If being used on boats, open the deck cowl.
• Heating switches to Fault
mode after an extended
period of operation.
– Hot-air outlets blocked.
– Gas pressure regulator
iced up.
– Butane content in the gas
cylinder too high.
– 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).
230 V electrical
operation
• No control lamp lights
up when the system is
switched on.
– No supply voltage. – Check 230 V supply voltage and fuses.
Water supply
• When the heating system
is switched off, the
electrical safety/drain valve
opens.
– Outside temperature
below 4°C.
– No 12 V power supply at
the drain valve.
– 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.
• The electrical safety/drain
valve will no longer close.
• Water dripping from the
electrical safety/drain valve.
– Outside temperature
below 8°C.
– No 12 V power supply at
the drain valve.
– Water pressure too high.
– 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.
If these measures do not lead to the rectification of the fault, in principle we would ask you to contact the Truma
Service Centre.
12
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