GB-16
D
GB
F
NL
I
E
? Fault code
A.
and
9
flash alternately and the
light is red?
The main fan continues to operate after the de-
vice has been switched off.
!
Wiring fault.
•
Check the wiring to actuate the main fan, see
!
The pressure switch does not switch.
•
Check the air hose on the pressure switch for
dirt and moisture and clean it.
!
The main fan is switched off but the pressure
switch signal does not drop.
•
Check the pressure switch and replace it if nec-
essary.
!
The relay to actuate the main fan is defective.
•
Replace the relay.
? Fault code
C.
and
1
flash alternately and the
light is red after 5 minutes?
Signal from safety temperature monitor (STM).
!
Temperature has been exceeded.
•
Leave heater to cool down for longer.
!
The main fan does not switch on.
•
Check the main fan.
!
Wiring fault.
•
Check the wiring to actuate the main fan, see
!
The safety temperature monitor (STM) is incor-
rectly aligned.
•
Check the position of the safety temperature
monitor (STM).
!
Ambient temperature exceeded.
•
The temperature is > 40°C. Allow the room to
cool.
!
The safety temperature monitor (STM) is measur-
ing an incorrect temperature.
•
Replace the safety temperature monitor.
!
The heater is badly soiled.
•
The heater must be cleaned urgently.
!
Installation position.
•
The heater is too close to other heaters, see
!
Incorrect CO
2
value.
•
The heater is not set correctly and must be ad-
justed, see page 9 (Adjusting the heater).
? Fault code
C.
and
2
flash alternately?
Signal from safety temperature limiter (STL).
!
Temperature has been exceeded.
In the event of a power failure during operation,
the heater will be switched off without a cool-
ing phase. In the event of a brief power failure
(< 5 minutes), the heat exchanger will heat the
device excessively and the STL will issue a signal.
•
In this case, Controlled air flow mode is activated.
If the heater has been successfully cooled within
1 minute, it will restart.
? Fault code
C.
and
2
flash alternately and the
light is red?
Signal from safety temperature limiter (STL).
!
The cause of the fault as described above for
warning
C.1
could not be rectified.
•
Check the heater for damage, see page 19
? Fault code
C.
and
3
flash alternately and the
light is red?
Temperature limiter (TL) has tripped.
!
Wiring fault.
•
Check contact at plug X16.
? Fault code
C.
and
4
flash alternately?
Capacity reduction function active. The capacity
reduction function is activated 10°C below the
trip temperature of the safety temperature moni-
tor (STM).
!
The main fan does not switch on.
•
Check the main fan.
!
Wiring fault.
•
Check the wiring to actuate the main fan, see
!
Ambient temperature exceeded. The temperature
is > 40°C.
•
Allow the room to cool.
!
The heater is badly soiled.
•
The heater must be cleaned urgently.
!
Installation position.
