Pfannenberg DTT 6801 Series User Manual

Operating Manual DTT 6801 Multicontroller (MC) 086100037 © Pfannenberg GmbH Page 39 / 49
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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 display)
is reached or exceeded.
 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.)
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
display) 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).
 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.
Er08
• LED:
• Compressor:
• Evaporator fan
(internal):
• Condenser fan
(external):
• Heater (external):
• Fault signal contact:
Blinking
ON
ON
ON
OFF
Open
 Sensor 2 (TS2) defect.
 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.

Pfannenberg DTT 6801 Series Specifications

General

Brand	Pfannenberg
Model	DTT 6801 Series
Category	Controller
Language	English