Operating Manual DTS and DTI 6201C / 6301C Multi-Controller (MC) 086100014 © Pfannenberg GmbH
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Error messages
Error
no.
Fault
Unit activity
Possible causes
Corrective measures
Er06
• LED:
• Compressor:
• Evaporator fan
(internal):
• Condenser fan
(external):
• Heater (external):
• Fault signal contact:
Blinking
OFF
ON
ON
OFF
Open
Sensor 1 Minimum:
Minimum switch cabinet
temperature value "Lit_"
(LCD) is reached
or exceeded.
Select higher switch
cabinet
temperature setpoint.
Inspect the switch
cabinet for leaks.
Move components near
the air inlet and outlet
further away in order to
prevent an air short
circuit. (Cold air is
diverted directly to the air
inlet by components.)
Er07
• LED:
• Compressor:
• Evaporator fan
(internal):
• Condenser fan
(external):
• Heater (external):
• Fault signal contact:
Blinking
ON
ON
ON
OFF
Open
Sensor 1 Maximum:
The maximum value of the
switch cabinet
temperature "Lit¯" (LCD)
has been reached or
exceeded.
The cooling unit cannot
sufficiently cool the air in
the switch cabinet.
Check the settings of the
cooling unit.
Clean the heat
exchanger fins
(internal/external).
Check evaporator fan
(internally) for
functionality.
Check the refrigeration
circuit for escaping
refrigerant or leaks.
If necessary, install a
cooling unit with a higher
cooling capacity.
Er08
• LED:
• Compressor:
• Evaporator fan
(internal):
• Condenser fan
(external):
• Heater (external):
• Fault signal contact:
Blinking
ON
ON
ON
OFF
Open
Sensor 2 (TS2) defective.
Replace Sensor 2 or the
controller circuit board
according to the unit
type.
Sensor 2 is plugged into
the circuit board, not
permanently soldered in
place.
