Stulz CyberCool 2 - 8. Malfunction; Malfunction Overview

89 © STULZ GmbH – all rights reserved EN/09.2019/G41
cybercool 2 screw original insTrUcTions
Alarm message Cause for alarm Cause Elimination
High pressure #
failure

triggered
 
 
 
-


 
 Press black release button at HP
switch after elimination of error.
Low pressure #
failure
Low pressure switch has
triggered.

Leak in refrigerant circuit.
Repair the leak. Refill refrigerant.
-


3. Expansion valve defective. Exchange expansion valve.
 
Power switch comp.
#

has triggered.




continuity and current consumption.

 
Compressor #
failure

or the protection device has
detected an error.
. Find the exact cause of error.
Sensor # failure 
value adjustable in the control-
ler has been exceeded.
-
ues in selected zone.

measuring instrument.
 Replace defective sensor.
Sensor # broken 
is outside the range defined in
the controller.
 
 
 
thermo meter, pressure gauge. Replace
defective sensor.
EEV #: Pressure
sensor error

expansion valve has detected
a malfunction of the pressure
sensor.
 
 Replace pressure sensor.
EEV #: Temperature
sensor error
-
ed a malfunction of the temper-
ature sensor.
 
 Replace temperature sensor.
# stands for a number in case of several components of the same kind.
8. Malfunction