Pfannenberg DTT 6101 Série Instructions D'utilisation page 88

GB
Error messages
Error
Fault
no.
•
Er06 LED:
•
Compressor:
•
Evaporator fan
(internal):
•
Condenser fan
(external):
•
Heater (external):
•
Fault signal contact:
•
Er07 LED:
•
Compressor:
•
Evaporator fan
(internal):
•
Condenser fan
(external):
•
Heater (external):
•
Fault signal contact:
•
Er08 LED:
•
Compressor:
•
Evaporator fan
(internal):
•
Condenser fan
(external):
•
Heater (external):
•
Fault signal contact:
Operating Manual DTT 6101 / 6201 Multicontroller (MC) 086100023 © Pfannenberg GmbH
Unit activity Possible causes
 Sensor 1 Minimum:
Blinking
 Minimum switch cabinet
OFF
ON
temperature value "Lit_"
(LCD display)
ON
is reached or exceeded.
OFF
Open
 Sensor 1 Maximum:
Blinking
 The maximum value of the
ON
ON
switch cabinet
temperature "Lit¯" (LCD
ON
display) has been reached
or exceeded.
 The cooling unit cannot
OFF
Open
sufficiently cool the air in
the switch cabinet.
 Sensor 2 (TS2) defect.
Blinking
ON
ON
ON
OFF
Open
Corrective measures
 Select higher switch
cabinet-
Select temperature
setpoint.
 Inspect the switch
cabinet for leaks.
 Move components near
the air intake and outlet
further away in order to
prevent an air short
circuit. (The cold air is
diverted directly to the air
inlet by components.)
 Check the settings of the
cooling unit.
 Clean the heat
exchanger fins
(internal/external).
 Evaporator fan
check (internally) for
function.
 Check the refrigeration
circuit for escaping
refrigerant or leaks.
 If necessary, install a
cooling unit with a higher
cooling capacity.
 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.
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