8
Operating Manual – Electric Heaters TEH 200 / TEH 300 / TEH 400 Version 3.0
EN
The accurate functionality of the device was tested during
production a number of times. If malfunctions occur nonetheless,
check the device according to the following list:
The STÖRUNG-FAULT lamp (19) lights up directly after
switch-on of the device:
• Aborted rundown from previous operation, which has led to
tripping of the safety temperature limiter. Actuate the reset
switch (20) of the safety temperature limiter and restart the
device.
• Malfunction in the software of the control unit or the
frequency converter (optional), which prevents the device
from starting. Acknowledge the fault by means of the
AUS-OFF button (15). If the STÖRUNG-FAULT lamp (19)
continues to be lit, switch the device off via the main
switch (9) and back on again after approx. 10 seconds.
The STÖRUNG-FAULT lamp (19) lights up during operation:
Faults control unit
For reading the fault messages at the control unit first the
electrical control box must be opened.
The STÖRUNG-FAULT lamp (19) also serves as collective fault
message for the control. The following faults will be displayed in
detail on the screen of the control unit:
• Motor or fan fault.
• Fault in the air volume flow:
– Pressure sensor has tripped.
• Critical overtemperature:
– Safety temperature limiter has tripped.
Note:
In case of all faults the heating is switched off, but not
disconnected from the mains. After elimination of the fault, it is to
be acknowledged via the AUS-OFF button (15) (Reset).
Errors and faults
Fault
Cause
Remedy
Insufficient air flow rate Blocked filter
Change filter.
Air resistance in ensuing
air line too high (length,
bends, foreign objects
etc.)
Reduce air resistance.
No sign of heating
Heating defective
Have the heating
repaired by a qualified
electrician.
Insufficient air flow rate
See fault
Insufficient air flow rate.
Thermostat tripped
Insufficient air flow rate
See fault
Insufficient air flow rate.
Defective thermostat.
Have the thermostat
replaced by a qualified
electrician.
Error in the sensor circuit Have the sensor circuit
checked by a qualified
electrician.
Temporary mains voltage
drop or power failure and
consequent failure of the
rundown
Actuate reset switch (20)
of the thermostat and
restart immediately. If no
warmth is required, set
the selection step switch
to position 0.
Electric installation
Failure of one or more
electrical components
Have the electric
installation checked and,
if required, defective
parts replaced by a
qualified electrician.
Pressure sensor tripped Fallen below minimum
air volume
See fault
Insufficient air flow rate.
