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Operation
The water container is now drained directly to the
outside via the pressure relief / drain valve� Check that
all the water 2�6 Gal� (10 litres) drains into the contain-
er through the pressure relief / drain valve� Leave the
pressure relief / drain valve open to ensure there is no
residual water during frost periods�
5.7
Filling the fuel lines
Air bubbles may form during extended standstill
periods, especially at hot temperatures, due to the
chemical properties of gasoline� Therefore, multiple
start attempts may be necessary� This does not indi-
cate a defect in the device�
To fill the fuel lines, you generally might have to start
the furnace several times�
Carry out the following steps:
Check that the wall cowl is unobstructed� Remove
any blockages�
Switch on the device at the control panel� The device
automatically performs 3 starting attempts (initial
start and two repeats) per switch-on procedure� If no
flame is detected after the repeat start, the device
switches to fault (Error "E 560") and has to be reset
at the control panel�
After a total of 5 unsuccessful starting attempts
(initial and repeat starts) with no flame, the system
is locked� Customer Service must unlock it� Contact
the Truma Service Centre or one of our authorised
Service Partners (see www�truma�com)�
Check fuel lines and connections for leaks after
filling the fuel lines�
5.8
Switching on the device
WARNING
Risk of poisoning from exhaust gases
The furnace's exhaust can be toxic in enclosed
spaces (e�g� garages, workshops)� If the vehicle
is parked in closed rooms:
Switch the furnace off on the control panel�
Disable the time switch / timer function�
Do not switch the furnace on remotely via
the app�
Check whether the shore power fuse at the campsite
is adequate for the 850W (7�1 A) or 1700W (14�2A)
that has been selected on the control panel�
DANGER
Risk of fire from overheating of the exten-
sion cable for power input
Completely unwind cable from a cable drum�
Check that the wall cowl is unobstructed� Remove
any blockages�
If necessary, fill the water container with water (refer
to "Filling the water container")�
Switch on the device on the control panel�
If there is smoke at the wall cowl for significantly
longer than 1 minute, switch off the device�
10
EN
5.9
Hot water supply
WARNING
Scalding from hot water
The water in the water container can reach tem-
peratures of up to 158 °F (70 °C)� If the cold and
hot water taps are separate with no mixer tap,
there is a risk of scalding�
Use a mixer tap / thermostatic mixer
To withdraw water in a controlled manner,
open the mixer tap / thermostatic mixer in
the middle position�
5.10 Switching off the device
The Combi G must only be switched off via the CP plus
control panel�
NOTICE
Damage to the device due to switching off
procedure being interrupted
Only switch the furnace off on the control
panel�
Do not disconnect the power supply while
the device is running�
Wait until you no longer hear the fan (this
can take up to 5 minutes)� During this time,
do not disconnect the furnace from the pow-
er supply�
NOTICE
Damage to the device caused by water
freezing in the water container
If there is a risk of frost, drain the water after
switching off the device�
Truma Combi G comfort / comfort plus
34020-01601 · 00 · 04/2024
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