33(40)
Fault
Test Conditions
Troubleshooting
Solution
Blower 1 fault
(Only applicable
for air-cooled
series)
Compressor 1 runs the test
Stop the compressor,
and do not stop the pump.
Check if the blower 1 fault input
input is consistent with the switch
setting.
Blower 2 fault
(Only applicable
for air-cooled
series)
Compressor 2 runs the test
Check if the blower 2 fault input
input is consistent with the switch
setting.
Blower 3 fault
(Only applicable
for air-cooled
series)
Compressor 3 runs the test
Check if the blower 3 fault input
input is consistent with the switch
setting.
Blower 4 fault
(Only applicable
for air-cooled
series)
Compressor 4 runs the test
Check if the blower 4 fault input
input is consistent with the switch
setting.
Water flow short
Test after the pump starts for
(Pump on delay)time
Stop the unit
Check if the water flow input is
consistent with the switch setting
Pump Overload
Test after pump starts
Stop the unit
Check if the pump overload input
is consistent with the switch
setting.
Phase Err
Power on to test
Stop the unit
Check if there is default phase or
anti-phase in the three-phase
power input and if the switch is
correct.
Water Level Low
Power on to test
Stop the unit
Check if the water level input is
consistent with the switch
setting.
Need Maintenance
Test after pump starts
The unit connot start once stops(the accumulative operation time of
compressor exceeds the set value)
