10. Built-in devices
127
Malfunction
If there is a malfunction, the control panel will immediately go to
“Malfunction” mode and display the Malfunction error code.
E = Malfunction
112 = Error code
H = Heating
Cause eliminated / Return to setting mode
• Press the control knob / pushbutton.
• The corresponding device will be restarted.
Cause not eliminated / Return to setting mode
• Press the reset button.
If the cause has not been eliminated, the malfunction will occur again
and the control panel will once again go to “Malfunction” mode.
Due to an internal lag feed in the connected devices,
this may take a few minutes.
In this case, the malfunction will not be acknowledged
on the control panel and the warning icon will continue
to be displayed. The device will remain in a state of
malfunction. Other connected devices can be operated.
FrostControl
FrostControl is a non-electric safety or drain valve. If there is a risk
of sub-zero temperatures it automatically drains the content of the
boiler via a drain outlet.
If the system is under excess pressure intermittent pressure equali-
sation will automatically take place via the safety valve.
k
Rotary switch position “ON”
m
Push button position “CLOSED”
n
Push button position “DRAIN”
o
Drain outlet (to the outside through the vehicle floor)
k
m
n
o
Diagram of Frost Control
To activate
• Push in the knob at position (
m
) slightly and, at the same
time, move it 90° towards position (
k
).
• If the switch is in position (k), the knob will remain in position (
m
).
To deactivate
• Turn the switch at position (
k)
by 90° so that it is parallel to
the frost control.
• At the same time, the knob will jump from position (
m
) to (
n
).
