Pfannenberg DTS 6301C - Page 74

Operating Manual DTS and DTI 6201C / 6301C Multi-Controller (MC) 086100014 © Pfannenberg GmbH Page 31 / 43
GB
4.6 Error messages
The error numbers are not displayed for units with standard controllers: With the ECoolPLANT software error
numbers can be read on the computer.
 The blinking of the red LED light on the controller circuit board is not a fault indicator or error message. The red
LED light indicates that voltage is supplied to the cooling unit.
Error
no.
Fault
Unit activity
Possible causes
Corrective measures
Er00
• LED:
• Compressor:
• Evaporator fan
(internal):
• Condenser fan
(external):
• Heater (external):
• Fault signal contact:
Blinking
OFF
OFF
OFF
OFF
Closed
 Door contact:
 The door contact loop has
been interrupted.
 Close door.
 Connect door contact
switch.
 Bypass door contact.
 Check wiring.
Er01
• LED:
• Compressor:
• Evaporator fan
(internal):
• Condenser fan
(external):
• Heater (external):
Fault signal contact:
Blinking
OFF
ON
ON
OFF
Open
 Pressostat tripped:
 Excessively high pressure
has built up in the
refrigerant circuit. The
cooling unit cannot
dissipate the heat from the
refrigerant circuit.
 Allow the unit to cool
down.
 Clean the heat
exchanger fins
(internal/external).
 Check condenser fan
(external) for function.
Er04
• LED:
• Compressor:
• Evaporator fan
(internal):
• Condenser fan
(external):
• Heater (external):
Fault signal contact:
Blinking
OFF
OFF
OFF
OFF
Open
 Phase sequence / phase
loss:
 Failure of at least one
phase or phase sequence
is incorrect (only with
alternating current units
with rotating piston
compressors).
 Check the field of
rotation - (clockwise
rotation is required).
 All phases must carry
rated operational
voltage.
Er05
• LED:
• Compressor:
• Evaporator fan
(internal):
• Condenser fan
(external):
• External heating:
Fault signal contact:
Blinking
ON
ON
ON
OFF
Open
 Sensor 1 (TS1) defective.
 Replace Sensor 1 or the
controller circuit board
according to the unit
type.
 Replace controller circuit
board if the sensor is
soldered in place.