Astralpool ALASKA Series, Technical Manual. Start-Up And Operation

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ALASKA / SIBERIA / BERING SERIES · Cooler EF AIR/WATER – WATER/WATER
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6.6 TROUBLESHOOTING GUIDE SYSTEM FAULTS AND LIST OF ERROR
CODES
ERROR
LCD
CODE
REASON SOLUTION
Low pressure Malfunction of
system 1
A11
Gas change too low. Possible system
blockage
Check pressure switch and gas circuit;
thermostatic valve closed, evaporator
clogged, fan stopped.
High pressure Malfunction of
system 1
A12
Gas change too high. Possible system
blockage
Check pressure switch and gas circuit,
refrigerant circuit. Insufficient water flow,
stop pump
Low pressure Malfunction of
system 2
A13
Gas change too low. Possible system
blockage
Check pressure switch and gas circuit;
thermostatic valve closed, evaporator
clogged, fan stopped.
High pressure Malfunction of
system 2
A14
Gas change too high. Possible system
blockage Check pressure switch and gas circuit,
refrigerant circuit. Insufficient water flow
Flow switch failure A15 No water/litter water in water system.
Check the water flow volume. Check water
pump
Water inlet temp. sensor
failure
A21 The sensor is open or short circuit Check or change the sensor
Cool1 sensor 1 failure A22 The sensor is open or short circuit Check or change the sensor
Cool2 sensor 2 failure A23 The sensor is open or short circuit Check or change the sensor
Exhaust sensor 1 failure A24 The sensor is open or short circuit Check or change the sensor
Exhaust sensor 2 failure A25 The sensor is open or short circuit Check or change the sensor
Fault probe aspiration circuit 1 A26 The sensor is open or short circuit Check or change the sensor
Fault probe aspiration circuit 2 A27 The sensor is open or short circuit Check or change the sensor
Outdoor air temperature fault
A28
The sensor is open or short circuit Check or change the sensor
Water outlet
temp.sensor.failure
A29 The sensor is open or short circuit Check or change the sensor
Low pressure transducer
failure (Optional)
A31 1#
The sensor is open or short circuit Check or change the sensor
High pressure transducer fault
(Optional)
A33 2#
The sensor is open or short circuit
Check or change the sensor
Exhaust temperature switch 1
failure
A42
Gas temperature (outlet) too high.
Possible system blockage
Check sensor and gas circuit
Exhaust temperature switch 2
failure
A43
Gas temperature (outlet) too high.
Possible system blockage
Check sensor and gas circuit
Temp. differential between
water-in and water-out is too
large
A44
Water flow volume not enough. Water
pressure is too low Check the water flow volume or water
pipes blocked
External air temperature too
low
A46
The external air temperature is lower
than the limit fixed
Check sensor and external air temperature
Fan overload protection A47 Fan overload Check or change the fan motor