Troubleshooting And Solutions - Orca ZEUS ZSW 300 Installation, Maintenance And User Manual

18 TROUBLESHOOTING AND SOLUTIONS

Description
Supply connected
Device active
Bottom water temp.
sensor failure
Upper water temp.
sensor failure
Temp. sensor on
entrance in evaporator
failure
Temp. sensor on
evaporator outlet
failure
Air temperature
sensor failure
High pressure
Low pressure
El. heater thermal
protection
Hot gas
Communication failure
Defrost
Alarm Indicator
OFF
ON
P1 1 ON 1 OFF
P2 2 ON 1 OFF
P3 3 ON 1 OFF
P4 4 ON 1 OFF
P5 5 ON 1 OFF
E1 6 ON 1 OFF
E2 7 ON 1 OFF
E3 8 ON 1 OFF
E4 9 ON 1 OFF
E8 ON
Defrost blinking
Reason
Sensor failure or no
connection
Sensor failure or no
connection
Sensor failure or no
connection
Sensor failure or no
connection
Sensor failure or no
connection
Too much gas in the
system, no water in tank
Too little gas in the system,
bad temperature transfer
on evaporator, evaporator
sensor failure
Too high water temperature
or no water in tank
Communication between
PCB and display disabled
22
Solution
Check and replace
sensor if needed
Check and replace
sensor if needed
Check and replace
sensor if needed
Check and replace
sensor if needed
Check and replace
sensor if needed
Check leakage, clean
evaporator, check
sensor on evaporator,
check air flow
Check cold water inlet
Check whole refrigerant
circle
Check connection
between display and
PCB