Sakura FVCA-100 B, Руководство пользователя, Страница: 40 / 50

Page 3
Troubleshooting
When any malfunction of the air conditioner unit is noted, immediately switch off the supply to
the unit. Check for the following fault conditions and causes for some simple troubleshooting
tips.
If the fault persists, please call your local dealer / service personnel.
Fault Possible C auses
Power failure or communication bus failure
"ERR CODE" d isplay on controller
Mo d ule in pre-heat con d ition
Wrong controller setting
Insufficient refrigerant
Low water flow
Power failure or wrong phase sequence
Refrigerant flow back
Compressor mechanical part failure
Insufficient refrigerant
Low water flow
Con d enser coil blocke d / d irty
Wrong TXV setting
Strainer choke d
Low refrigerant flow
Water system choke d / air trap
Refrigerant over-charge d
Ambient temperauture too high
Un-con d ensable gas exist in the circuit (example: air)
Con d enser coil blocke d / d irty
Insufficient refrigerant
Not enough compression or no compression (compressor faulty)
Refrigerant over-charge d
Entering water temperature too high
Leakage of 4-way valve
Wrong TXV setting
Insufficient refrigerant
Entering water temperature too low
Expansion d evice choke d .
TXV Faulty
Low suction pressure
Suction tube freeze
High con d enser pressure
Low con d ensor pressure
High suction pressure
The compresser d oes not
operate
Compressor frequent cut
in / cut out
Compressor noise
Insufficient Cooling