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Faults
Faults – Heater
Descriptions of possible fault causes and a troubleshooting
guide can be found in the operating instructions for the con-
trol panel that is installed.
Faults – Water supply
Possible fault causes and a troubleshooting guide – See
"Troubleshooting guide (water supply)".
Troubleshooting guide (water supply)
Fault
Water taking an extremely
long time to heat up.
Water running away – boiler
cannot be filled.
Boiler cannot be drained,
even though the safety/drain
valve is open.
Water dripping/flowing from
drainage socket of safety/
drain valve.
After the heater has
been switched off, the
FrostControl opens.
The FrostControl can no
longer be closed.
If these actions do not remedy the problem, please
contact Truma Service.
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.
18
Cause / Remedy
Water container furred. /
Descale water system (see
maintenance).
Safety/drain valve open. /
Close safety/drain valve.
Safety/drain valve drainage
socket blocked. / Check open-
ing for soiling (slush, ice,
leaves etc.) and remove if
necessary.
Water pressure too high. /
Check pump pressure (max.
2.8 bar). If the boiler is con-
nected to a central water sup-
ply (rural or urban connection),
a pressure reducer must be
used that will prevent pres-
sures higher than 2.8 bar from
occurring.
At temperatures of less than
approx. 3 °C the FrostControl
opens automatically / Switch
heater on / Without heater op-
eration the FrostControl can-
not be closed again until the
temperature reaches approx.
7 °C / Use heating element for
FrostControl.
Temperature at FrostControl
less than approx. 7 °C /
Switch heater on / With-
out heater operation the
FrostControl cannot be closed
again until the temperature
reaches approx. 7 °C.
Rotary switch is not set to
"Operation". / Turn the rotary
switch of the FrostControl to
"Operation", then press the
pushbutton until it engages.
Accessories
Truma CP plus
Truma CP plus digital control panel with automatic air con-
ditioning system for the iNet-capable Truma heaters
Combi and Truma air conditioning systems Aventa eco,
Aventa comfort (from serial number 24084022 – 04/2013),
Saphir comfort RC and Saphir compact (from serial number
23091001 – 04/2012)
– The automatic air condi-
tioning system function
automatically controls the
heater and the air condi-
tioning system until the
required temperature is
reached in the vehicle.
– With the Truma iNet Box
extension, all TIN-Bus-
capable Truma appliances
can also be controlled via
the Truma App.
Truma iNet Box
The Truma iNet Box for simple networking and control of
Truma appliances with a smartphone or tablet computer using
the app.
– Simple installation and
start-up via the Truma App
– Can be extended with the
update function, which
ensures that it is always up
to date
Truma CP E classic / Truma CP classic
Analogue control panels Truma CP E classic (power selector
switch – Fig. 11) and Truma CP classic (control panel – Fig. 12).
Combi E
Fig. 11
230 V~
Heating element for FrostControl
Heating element with 1.5 m connector cable and retaining
bracket.
Fig. 13
Other accessories (not illustrated) for control panels
– 3 m, 6 m and 9 m cable
Figure 9
Figure 10
Combi
Fig. 12
60
°
40
°
60
°
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