Truma CP plus VarioHeat User manual

Operating instructions Page 2
To be kept in the vehicle!
Truma CP plus VarioHeat

2
Truma CPplus VarioHeat control panel
Symbols used
The appliance must only be installed and repaired by an
expert.
Symbol indicates possible hazards.
Note containing information and tips.
Observe the ESD regulations. Electrostatic charging can
destroy the electronics. Ensure that potential compen-
sation is present before touching the electronics.
Table of contents
Operating instructions
Intended use ....................................................................... 3
Safety instructions ............................................................ 3
Important notes ................................................................. 3
Air conditioning systems – shared use of IRremote control
and Truma CPplus VarioHeat control panel .......................... 3
Display and control elements .......................................... 4
Rotary push button ............................................................... 4
Back button ........................................................................... 4
Initial start-up ..................................................................... 5
Start-up ................................................................................ 5
Functions ............................................................................... 5
Select setting level ................................................................ 5
Switching on/off .................................................................... 5
APP mode in conjunction with an iNet Box .......................... 6
Changing the room temperature .......................................... 6
Select energy type ................................................................ 7
Select fan level ...................................................................... 7
Set time switch ..................................................................... 8
Switch lighting on / off ........................................................ 10
Set time ............................................................................... 11
Service menu ...................................................................... 11
Special displays ................................................................ 14
230 V mains voltage available ......................................... 14
Infrared (IR) remote control (air conditioning system) ........ 14
Truma App with iNet Box .................................................... 14
External control panel (CI-BUS) .......................................... 14
Energy type display ............................................................. 14
Warning / Error ................................................................. 15
Warning ............................................................................... 15
Error ..................................................................................... 15
Maintenance ..................................................................... 16
Disposal ............................................................................. 16
Technical data ................................................................... 16
Troubleshooting guide, Truma VarioHeat (H) .............. 17
Troubleshooting guide, Truma air conditioning
system(A) ......................................................................... 18
Troubleshooting guide, Truma E-Kit (E) ....................... 18

3
Intended use
The Truma CP plus VarioHeat control panel is used to control
and monitor the Truma VarioHeat heater, TrumaE-Kit and/or a
Truma air conditioning system. The Truma CP plus VarioHeat
control panel1acts as an interface to operate connected
appliances via the Truma App and Truma iNet Box.
The following air conditioning systems can be operated with
the Truma CPplus VarioHeat1:
– Saphir compact2, Saphir comfort RC2
– Aventa eco, Aventa comfort3, Aventa compact
The Truma CPplus VarioHeat is intended for installation in
caravans and motor homes.
1And/or Truma CPplus VarioHeat CI-BUS for CI-BUS – not
retrofittable.
2From serial number 23091001. In combination with a Truma VarioHeat
heater, a “control panel cable coupling” is essential between the air
conditioning system and the heater. Order the “control panel cable
coupling” separately. Not in conjunction with inverter TG1000 sinus.
3From serial number 24084022.
Safety instructions
– Operate the Truma CPplus VarioHeat control panel only if it
is in a technically perfect condition.
– Repairs must be carried out immediately. Only carry out
repairs yourself if the solution is described in the trouble-
shooting guide of these operating instructions.
– Do not carry out any repair work or modifications on the
Truma CPplus VarioHeat control panel.
Operating instructions – A defective Truma CPplus VarioHeat control panel may be
repaired only by the manufacturer or the manufacturer’s
service department.
– Never use LP gas appliances when refuelling, in multi-
storey car parks, in garages or on ferries. Switch off the
TrumaCP plus VarioHeat control panel to prevent the heat-
er being switched back on by the Truma App or the time
switch (see “Switching on/off” on page5).
Important notes
– If the power supply to the system has been interrupted, the
time / time switch must be reset.
– If a new or replacement appliance (heater, air conditioning
system or Truma iNet Box) is connected to the bus sys-
tem, the procedure described in “Initial start-up” must be
repeated.
Air conditioning systems – shared use of
IRremote control and Truma CPplus VarioHeat
control panel
– Even after connecting the Truma CP plus VarioHeat control
panel, the IR remote control is still available to control the
air conditioning system. The Truma CP plus VarioHeat con-
trol panel recognises all settings that are made on the air
conditioning system using the IR remote control. The IRre-
mote control only transmits the settings that are shown in
its display (no bidirectional communication).
– Only the time switch of the Truma CP plus VarioHeat control
panel may be used to clearly define the start and end time
of a required period.

4
Display and control elements
2
3
5
4
8
6
7
9
1
Fig. 2
1 = Display
2 = Status bar
3 = Menu bar (upper)
4 = Menu bar (lower)
5 = 230 V mains supply indicator (power)
6 = Time switch display
7 = Settings / Values
8 = Rotary push button
9 = Back button
The menus can be selected in lines (3 + 4) and settings can be
made using the rotary push button (8). The display (1) has an
illuminated background. The Back button (9) can be used to
return from a menu.
Rotary push button
Setpoints and parameters can be selected and modified using
the rotary push button (8) and saved by tapping on it. Select-
ed menu items flash.
+
Fig. 3
Rotate clockwise
– Menu is run through from left to right.
– Increase values (+).
-
Fig. 4
Rotate anticlockwise
– Menu is run through from right to left.
– Decrease values (-).
Fig. 5
Tapping
– Accept (save) a selected value.
– Select a menu item, switch to setting
level.
Long press
– Main switch function ON/OFF.
– If an Truma iNet Box was recognised
while searching for an appliance, the
function of the rotary push button
changes (see “APP mode in conjunc-
tion with an iNet Box” on page6).
Back button
Pressing the Back button (9) returns you from a menu and
discards settings. This means that the previous values are
retained.

5
Initial start-up
In order to perform the initial start-up, the following steps are
required:
– Switch on power supply. 12 V for Truma CPplus VarioHeat
control panel, Truma VarioHeat and Truma E-Kit and 230 V
for air conditioning systems and Truma E-Kit.
– Start the search of the appliances under the menu item
“Service menu” -> “RESET” -> “PR SET”.
After confirmation, the Truma CP plus VarioHeat control panel
initialises itself. “INIT ..” appears on the display while this is in
progress. The devices that have been found are stored in the
control panel.
Start-up
Start / Stand-by screen
After connecting the Truma CPplus VarioHeat control panel
to the power supply, a start screen is displayed after a few
seconds.
Fig. 6
– The display changes between the time and the set
room temperature.
– Special displays on command via IR remote control
of the air conditioning system or CI-BUS (see “Special
displays” on page14).
– After a repair / retrofit, the procedure described under
“Initial start-up” must be repeated.
Functions
The functions in the menu bars (3, 4) of the
Truma CPplus VarioHeat control panel are selectable in any
order. The operating parameters are shown on the status
bar(2) and on the displays (5, 6).
Select setting level
– Tap the rotary push button.
The display shows the setting level. The first icon flashes.
Fig. 7
Switching on/off
Switching on
– Tap the rotary push button.
Previously set values / operating parameters are reacti-
vated after switching on.
Switching off
– Press the rotary push button for longer than 4 seconds.
The Truma CPplus VarioHeat control panel deactivation
procedure can be delayed by several minutes because of
internal heating or air conditioning system after-runs (“OFF” is
shown on the display during this time).

6
APP mode in conjunction with an iNet Box
Operation
In APP mode, the connected appliances and the
Truma CP plus VarioHeat are in stand-by.
– No heating function.
– No hot water heating.
– No operation of the air conditioning system.
– No time switch function in the Truma CP plus VarioHeat
control panel
– The CP plus control panel remains ready to receive com-
mands via the Truma App or the infrared remote control of
the air conditioning system. This means that the connected
appliances remain operable via the Truma App or the infra-
red remote control of the air conditioning system.
Activating APP mode
– Press the rotary push button for about 2 seconds until
“APP” appears in the display.
– Release the rotary push button.
– The previously set values are saved.
Ending APP mode
APP mode is ended
– when new values are determined via the Truma App or the
air conditioning system’s infrared remote control.
– when the Truma CP plus VarioHeat control panel is woken
up by pressing the rotary push button. The previously saved
values are then accepted for renewed operation.
Changing the room temperature
– Select icon in menu bar (3) with rotary push button.
– Change to the setting level by tapping on the rotary push
button.
– Select between the heater (HEATER) or the air conditioning
system (AC) using the rotary push button, depending on the
connected appliance.
– Tap rotary push button to confirm selection.
– Select desired temperature with rotary push button.
– Tap rotary push button to confirm the value.
Fig. 8
2
3
c fda b e
Quick temperature change possible using rotary push
button (in stand-by screen).
Heater (HEATER)
Settable temperature range 5 – 30 °C (1 °C increments)
a = Heater on – symbol lit, the symbol flashes until the room
temperature is reached.
The temperature range below 5°C (OFF) must be selected
in order to switch off the heater.
Air conditioning system (AC)
Settable temperature range 16 – 31 °C (1 °C increments)
b = COOL –Air conditioning system is switched on
c = AUTO –Air conditioning system is set to automatic
d = HOT –Air conditioning system is in heating mode.
e = VENT – Air conditioning system is in air circulation mode

7
Automatic climate control (AUTO)
Settable temperature range 18 – 25 °C (1 °C increments)
Automatic switchover between heater and air conditioning sys-
tem for an approximately constant temperature on the inside.
f = AUTO – Automatic climate control is activated
Requirements for operation with automatic climate control:
– The heater and air conditioning system must be connected.
– Automatic climate control “ACC” must be activated in the
service menu (see “Service menu” on page11).
Select energy type
Is displayed only if a Truma VarioHeat and a Truma E-Kit
are both connected.
– Select icon in menu bar (3) with rotary push button.
– Change to the setting level by tapping on the rotary push
button.
– Select the desired energy type with the rotary push button.
– Tap rotary push button to confirm selection.
3
ab c d e
Figure 9
Icon Energy
type
Description
a GAS The Truma VarioHeat heats in gas
mode.
b MIX 1 The Truma VarioHeat heats in gas
mode. The Truma E-Kit heats with
900W.
c MIX 2 The Truma VarioHeat heats in gas
mode. The Truma E-Kit heats with
max. 1800W.
d EL 1 The Truma E-Kit heats with 900W.
e EL 2 The Truma E-Kit heats with max.
1800W.
Select fan level
With connected heating / air conditioning system
– Select icon in menu bar (3) with rotary push button.
– Change to the setting level by tapping on the rotary push
button.
– Select desired fan level with rotary push button.
– Tap the rotary push button to confirm the value.
2
3
a b c d
Fig. 10

8
Heater (HEATER)
Icon Operating
mode
Description
– OFF Fan is switched off.
(only selectable if no appliance
is in operation).
a VENT1Air circulation if no unit is in oper-
ation. 10 speed settings available.
bAUTO Automatic control of the fan, de-
pending on the heating power /
optimised to the current heating
requirement
c BOOST Rapid room heating
Available if the difference be-
tween the selected and actual
room temperature is >10°C
Not available in electrical mode
(EL1, EL2).
d NIGHT Ultra-quiet fan operation. Heat-
er running only at partial load.
Might not be possible to reach
the set room temperature (de-
pending on the vehicle size and
outside temperature). Available
only in gas mode (GAS).
1. Can cause increased motor wear, depending on how often it is
used. Quick level change possible using the rotary push button (in
stand-by screen).
2. Fan level “BOOST” results in higher power consumption, higher
noise level and increased motor wear.
As soon as the heater is switched on (room temperature
selected), the status bar (2) displays the fan level that
was selected during the previous heating cycle. The default
setting is “AUTO”.
Air conditioning system (AC)
Icon Operating
mode
Description
– OFF Fan is switched off
(only selectable if no appliance
is in operation).
a – –
bLOW Low fan level
c MID Medium fan level
d HIGH High fan level
e NIGHT Ultra-quiet fan operation
fAUTO Automatic fan level selec-
tion. Cannot be changed in
AUTOmode.
Set time switch
Danger of toxic exhaust fumes.
The activated time switch switches on the heater even
when the vehicle is parked. The heater’s exhaust can be tox-
ic in enclosed spaces (e.g. garages, workshops).
If the vehicle is parked in closed rooms:
– Shut off the (gas) fuel supply to the heater.
– Switch off the Truma CP plus VarioHeat control panel
to prevent the heater being switched back on by the
TrumaApp or the time switch (see “Switching on/off”).

9
– When air conditioning systems are being operated, use
only the time switch of the Truma CPplus VarioHeat
control panel to clearly define the start and end time for
a required period.
– If the time switch has been activated (ON), the deacti-
vate time switch menu is displayed first (OFF).
– Select icon in menu bar (4) with rotary push button.
– Change to the setting level by tapping on the rotary push
button.
Entering the start time
– Set the hours then the minutes with the rotary push button.
24h mode 12h mode
Fig. 11
= a. m.
= p. m.
Fig. 12
Entering the end time
– Set the hours then the minutes with the rotary push button.
24h mode 12h mode
Fig. 13
= a. m.
= p. m.
Fig. 14
If the start/end point was exceeded during entry, the op-
erating parameters are not taken into consideration until
the next start/end point has been reached. Until then, the op-
erating parameters that have been set outside the time switch
remain valid.
Setting the room temperature
– Depending on the appliance that is connected, use the rotary
push button to select heating system (HEATER), or air condi-
tioning system (AC) or automatic climate control (AUTO) (see
“Changing the room temperature” on page6).
– Tap rotary push button to confirm selection.
– Select required room temperature with rotary push button.
– Tap the rotary push button to confirm the value.
Fig. 15

10
Selecting the energy type (HEATER only)
For more information refer to “Select energy type” on
page7
– Select the desired energy type with the rotary push button.
– Tap the rotary push button to confirm the selection.
Fig. 16
Select fan level
– Select desired fan level with rotary push button.
– Tap the rotary push button to confirm the value.
Fig. 17
Activate time switch (ON)
– Activate time switch with rotary push button (ON).
– Tap the rotary push button to confirm the value.
2
Fig. 18
– The time switch remains active until it is deactivated
(OFF), even for several days.
– If the time switch is programmed and active, the time
switch icon flashes.
Deactivating the time switch (OFF)
– Change to the setting level by tapping the rotary push
button.
– Deactivate time switch with rotary push button (OFF).
– Tap the rotary push button to confirm the value.
Fig. 19
Switch lighting on / off
Only with Truma Aventa roof-mounted air conditioning sys-
tems with Aventa air distributor (with integrated lighting).
– Select icon in menu bar (4) with rotary push button.
– Change to the setting level by tapping on the rotary push
button.
– Select required function with rotary push button.
1 – 5 – Switch lighting on.
Brightness selectable in 5 levels.
OFF – Switch lighting off.
– Tap the rotary push button to confirm the value.

11
4
Fig. 20
Set time
Display, 24h mode Display, 12h mode
4
Fig. 21
= a. m.
= p. m.
4
Fig. 22
– With the rotary push button (8), select the “Set time” sym-
bol in the menu bar (4).
The hour display flashes.
– Set the hours with rotary push button (8).
– The minutes display flashes when the rotary push button (8)
is tapped again.
– Set the minutes with rotary push button (8).
– Tap the rotary push button (8) to confirm the value.
Service menu
1. Calibrating the room temperature sensor of the
heater (OFFSET)
The room temperature sensor of the heater can be individually
adjusted to the sensor’s installation situation. The setting can be
made in increments of 0.5 °C within the range of 5°Cto-5 °C.
Example:
Set room temperature 23 °C;
OFFSET = -1 °C;
– Setpoint value for heater = 22 °C
Fig. 23
Presetting: 0°C (Celsius).
2. AC SET1,2
The sensed room temperature can – during operation of the
automatic climate control – be perceived differently during
cooling than during heating. “AC SET” is used to set an offset
between cooling and heating. The setting can be made in in-
crements of 0.5°C within the range of 0°Cto+5°C.
Fig. 24
Example:
Set room temperature 23 °C;
AC SET = 2 °C
– Setpoint value for air conditioning
system = 25 °C
Presetting: +1°C (Celsius).
1Only available if the air conditioning system and heater are
connected.
2Only available if ACC is set to “ON”.

12
3. ACC1
The automatic climate control function AUTO is activated or
blocked with “ACC”.
ON – The automatic climate control function AUTO is ac-
tivated. Automatic climate control function AUTO
can be selected in the Room temperature menu.
– “AC SET” appears in the Service menu.
OFF – The automatic climate control function AUTO is
blocked.
Fig. 25
Presetting: OFF
The function of the Truma automatic climate control de-
pends on proper installation. Your Truma dealer/partner
would be pleased to advise you whether your vehicle is suitable.
Requirements for the automatic climate control functioning as
expected:
1.The air conditioning system and heater cover the entire
area of the vehicle that is supposed to be automatically air
conditioned.
2.The room temperature sensor of the heater is the lead sen-
sor of the automatic climate control and must therefore be
in a suitable location, i.e.
– in the area in which the required room temperature
should be reached.
– if possible not influenced by outside temperature or
sunlight.
– not close to warm air ducts, cold air ducts or other sourc-
es of heat.
– warm or cold air from the air outlets must not flow
against the room temperature sensor. Particular attention
must be paid to this when adjusting the air throttles on
Aventa air conditioning systems.
– with good circulation and not on the vehicle ceiling.
Truma dealers / Truma partners are trained in the correct in-
stallation of the automatic climate control. You can find our
dealers / Truma partners at www.truma.com.
4. °C / °F temperature display
Select the temperature display °C (Celsius) or °F (Fahrenheit).
Fig. 26
Presetting: °C (Celsius).
5. Changing the background lighting
Change the background lighting of the Truma CPplus VarioHeat
control panel in 10 increments.
Fig. 27

13
6. 12h / 24h mode
Display time in 12h (a. m., p. m.) / 24h mode.
Fig. 28
Presetting: 24h mode.
7. Change language
Select the desired language (German, English, French, Italian).
Fig. 29
Presetting: English
8. Showing the version number
Display the version number of the heater, air conditioning
system, Truma iNet Box, and Truma CP plus VarioHeat con-
trol panel.
Example:
H 1.20.01 -> H = Appliance; 1.20.01
= Version number
Fig. 30
Appliance
P = Truma CPplus VarioHeat control panel
L = Truma CPplus VarioHeat control panel CI Bus
A = Air conditioning system
H = Truma VarioHeat
T = Truma iNet Box
E = Truma E-Kit
9. Presetting (RESET)
The Reset function resets the Truma CPplusVarioHeat control
panel to the factory settings. This deletes all settings. Newly
connected appliances are recognised and stored in the con-
trol panel .
– Switch on the power supply
12 V direct voltage for Truma CPplus VarioHeat control panel
and Truma VarioHeat or
230 V mains voltage for air conditioning systems and
Truma E-Kit.
Perform Reset
– Select “RESET” with the rotary push button (8).
– Tap the rotary push button (8).
– “PR SET” appears in the display.
– Tap the rotary push button (8) to confirm.

14
Fig. 31
After confirmation, the Truma CP plus VarioHeat control panel
initialises itself.
“INIT ..” appears on the display while this is in progress.
Special displays
230 V mains voltage available
The icon indicates that 230 V mains voltage (power) is avail-
able at the connected heater and/or air conditioning system.
Fig. 32
Infrared (IR) remote control (air conditioning
system)
When a command is sent via the infrared remote control of
the air conditioning system, “IR” appears in the display.
Truma App with iNet Box
When a command is sent via the Truma APP from a mobile
device, “APP” appears in the display.
External control panel (CI-BUS)
When a command is sent via an external control panel with
CI-BUS, “CI” appears in the display.
The Truma CPplus VarioHeat control panel CI-BUS is
the company’s own variant that is configured only at the
factory.
Energy type display
– The energy type e.g. gas (a) is displayed in heating mode
(see “Select energy type” on page7)
a
Fig. 33

15
Warning / Error
Warning
If an operating parameter is outside the target range, the
Truma CPplus VarioHeat control panel immediately jumps to
the “Warning/Error” menu level and displays the respective
fault code. The cause of the warning can be determined and
remedied with the aid of the troubleshooting guide (from
page17 and ff).
Returning to the settings level
– Tap the rotary push button or press the Back button. If the
display is in stand-by mode, tap to activate the background
lighting and tap again to acknowledge the warning.
If possible, the appliance concerned continues to oper-
ate. When the operating parameter is within the target
range again, this icon extinguishes again automatically.
1
Fig. 34
Reading out the warning fault code
When the warning has been acknowledged, the fault code
can be opened again:
– Select the warning symbol (1) with the rotary push button.
– Tap the rotary push button. The current warning fault code
is displayed.
Fig. 35
W = Warning
42 = Fault code
H = Appliance
H = Truma VarioHeat
A = Air conditioning system
E = Truma E-Kit
Error
In the event of an error, the Truma CPplus VarioHeat control
panel immediately jumps to the “Warning/Error” menu level
and displays the respective fault code. The cause of the error
can be determined and remedied with the aid of the trouble-
shooting guide (from page17 and ff).
Fig. 36
E = Error
12 = Fault code
H = Appliance
H = Truma VarioHeat
A = Air conditioning system
E = Truma E-Kit
Cause eliminated / return to the setting level
– Tap the rotary push button. If the display is in stand-by
mode, the background lighting is activated by tapping and
the error must be acknowledged by tapping again.
– If necessary, the respective appliance is restarted
automatically.
This can take several minutes because of internal af-
ter-runs of connected appliances.

16
If the cause has not been remedied, the malfunction will re-
occur and the control panel will jump to the “Warning/Error”
menu level again.
Cause not eliminated / return to the setting level
– Press the Back button.
In this case, the error in the Truma CPplus VarioHeat
control panel is not acknowledged and the warning
symbol (Figure 34 - 1) remains. The appliance remains in fault
status. Other connected appliances can be operated.
Reading out the error fault code
When the error has been acknowledged, the fault code can
be opened again:
– Select the warning symbol (Figure 34 - 1) with the rotary
push button.
– Tap the rotary push button. The current error fault code is
displayed.
Maintenance
The Truma CPplus VarioHeat control panel is maintenance-free.
In order to clean the front panel, use a damp, non-scouring
cloth. If this is not sufficient, use a neutral soap solution.
Disposal
The appliance must be disposed of in accordance with the ad-
ministrative regulations of the respective country in which it is
used. National regulations and laws (in Germany, for example,
the End-of-Life Vehicle Regulation) must be observed.
Technical data
Display LCD, monochrome, with
background lighting
Dimensions (L x W x H) 92 x 103 x 40 mm
Operating temperature
range -25°C to +60°C
Storage temperature range -25°C to +70°C
Interfaces
Truma CP plus VarioHeat TIN bus
Truma CP plus
VarioHeat CI-BUS TIN bus, CI BUS
Power supply 8V – 16.5V
Power consumption at
rated voltage 12 V max. 65 mA (100% back-
ground lighting)
6.5 mA – 10 mA (stand-by)
Quiescent current
consumption max. 3 mA (Off)
Weight approx. 100g
Protection class Class III
Protection type IP00
Subject to technical changes.

17
Troubleshooting guide, Truma VarioHeat (H)
Fault code Cause Remedy
E 2 H
E 16 H
Flame not recognised:
– Gas cylinder empty
– Gas cylinder or quick-acting valve in the gas
supply line closed
– Replace gas cylinder
– Check gas supply and open valves
– Gas pressure regulation system iced up – Use EisEx regulator heater
– Butane content in the gas cylinder too high – Use propane (butane is unsuitable for heating, particularly
at temperatures below 10°C)
– Combustion air infeed or exhaust outlet is
sealed
– Inspect openings for obstructions (slush, ice, leaves, etc.)
and remove any obstructions
W 25 H – Overvoltage > 16.4 V – Check the battery voltage and voltage sources such as the
charger
W 26 H – Low voltage, battery voltage too low < 10 V – Charge battery and replace old battery if necessary
W 27 H – Warm air outlets blocked
– Circulated air intake blocked
– End outlets EN closed
– Remove blockage
– Remove blockage
– Open end outlets EN
W 28 H – Window above cowl open (window switch) – Close windows
W 29 H – Risk of low voltage, battery voltage too low
<10.4 V
– Charge battery
W 255 H – Heater has no 12 V power supply
– No connection between heater and control
panel
– Ensure 12 V power supply
– Connect heater and control panel

18
Troubleshooting guide, Truma air conditioning system(A)
Fault code Cause Remedy
E8A
W 8 A
– IR receiver unplugged or cable broken – Check the connection of the IR receiver
E17 A
W 17 A
– Voltage drop at 230 V power supply – Check 230 V power supply
Troubleshooting guide, Truma E-Kit (E)
Fault code Cause Remedy
W 101 E – Overvoltage >16.1 V – Check the battery voltage and voltage sources, such as the
charger
W 102 E – Low voltage
Battery voltage too low < 10.4V
– Charge battery and replace old battery if necessary
W 103 E – Warm air outlets blocked
– Circulated air intake blocked
– Check the individual outlet openings
– Remove the circulated air intake blockage
W 104 E – No 230 V operating voltage
– 230 V fuse defective
– Restore 230 V operating voltage
– Replace 230 V fuse
W 255 E – Truma E-Kit has no 12 V power supply
– No connection between Truma E-Kit and
control panel
– Ensure 12 V power supply
– Connect heater and control panel
If these measures do not remedy the error, or if fault codes are displayed that you cannot find in the troubleshoot-
ing guide, please contact Truma Service.

Truma Gerätetechnik GmbH & Co. KG
Wernher-von-Braun-Straße 12
85640 Putzbrunn
Deutschland
Service
Telefon [phone]
Telefax [phone]
[email protected]
www.truma.com
39050-00514 · 00 · 03/2018 ·
Should problems occur, please contact the Truma Service
Centre or one of our authorised service partners
(see www.truma.com).
In order to avoid delays, please have the unit model and serial
number ready (see type plate).
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