Daikin VRV K - Troubleshooting (Inverter); Outdoor Unit: Malfunction of Inverter Radiating Fin Temperature Rise

Si-95 Troubleshooting (Inverter)
Troubleshooting Inverter K Series 115
4. Troubleshooting (Inverter)
4.1 Outdoor Unit: Malfunction of Inverter Radiating Fin Temperature Rise
Remote Controller
Display
LL
LL
44
44
Supposed Causes ■ Actuation of fin thermal (Actuates at min. 90˚C and resets at max. 80˚C)
■ Defect of inverter PC board
■ Defect of fin thermistor
Troubleshooting
(VF063)
Characteristic
check of the radiator fin
thermistor (Refer to thermistor
characteristics
table.)
Defect of power unit radiation
• Air intake port is clogged
• Radiator fin is dirty
• Outdoor temperature is high
NO
Replace the thermistor.
YES
Abnormal
Is reset possible?
Reset and operate.
Normal
Replace the inverter unit.
NO
YES
Temperature
of the radiator fin rises.
Actuates at min. 90 ˚C
Resets at max.
80 ˚C
SI-95.BOOK Page 115 Friday, March 31, 2000 10:59 AM