Truma Combi G comfort Mode D'emploi page 13

Truma Combi G comfort / comfort plus
8.1.2 120 V AC fuse
(only Truma Combi G comfort plus)
The fuse and power supply lines must be replaced
by an expert� The following information in this
section is intended only for the expert who will carry
out the work�
DANGER
Electric shock when working on the elec-
tronics
Before opening the electronics cover, discon-
nect all poles from the mains supply�
The fuse (Fig� 7-4) is located on the power electronics
beneath the electronics cover (Fig� 7-3)�
DANGER
Risk of fire if an unsuitable fuse is used
May be replaced only with a Truma original
part
Disconnect all poles from the battery�
Remove the connector cover (Fig� 7-1)�
Before removing the cables, take note of the pin allo-
cation (take a photo if necessary)�
Unplug all cables from the PCB�
Undo the screws (Fig� 7-2) with a TX20 screwdriver�
Remove the electronics cover�
Replace the fuse�
Replace the electronics cover�
Screw in the screws with a TX20 screwdriver�
Connect all cables to the PCB�
Replace the connector cover�
Reconnect the battery�
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Fig� 7
8.1.3 120 V AC overheating protection
The water container has a mechanical overheating
protection switch that interrupts the 120 V AC power
supply if the water temperature is too high�
Allow the furnace to cool�
Disconnect all poles of the device from the mains
supply�
34020-01601 · 00 · 04/2024
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Remove the connector cover (Fig� 8-1)�
Press the red reset button (Fig� 8-2)�
Replace the connector cover�
Fig� 8
8.2 Pressure relief / drain valve
For the pressure relief / drain valve see "5�4�1 Opening
the pressure relief /
drain valve" on page 9 and "5�4�2 Closing the pres-
sure relief / drain valve" on page 9�
Operate the valve manually if the furnace has not
been in use for more than 3 months, but at least
twice per year to ensure that water channels are
clear�
If no water flows when the lever is operated, check
the water supply�
The water pump must be turned on or the RV must
be connected to city water�
The pressure relief / drain valve should be inspected
every three years by a qualified service technician
and be replaced if necessary�
8.3 Shutting down for winter storage
See "Draining the water container" on page 9�
8.4 Resume operation (after a long peri-
od of non-use)
8.4.1 Ensure a power supply
Charge the vehicle battery if the voltage is low�
8.4.2 Ensure fuel supply
Check that the vehicle fuel tank is sufficiently filled�
 After an extended standstill period, especially at hot
temperatures, several start attempts may be neces-
sary to fill the fuel line (see "5�7 Filling the fuel lines"
on page 10)�
8.4.3 Checking the wall cowl
If the vehicle has not been used for some time, insects,
spiders or other small animals may have built a nest in
the wall cowl�
Before starting the furnace after long periods of
non-use, visually check the wall cowl for damage or
foreign bodies�
Maintenance and servicing
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EN 13