Trouble Shooting; Faulty Pcb - Daikin FTK25JVE9 Service Manual

Trouble shooting

5. Trouble shooting

5.1

Faulty PCB

A1 A1 A1 A1
Remote
Controller
Display
Indoor unit LED
Display
Method of Evaluation of zero-cross detection of power supply by indoor unit.
Malfunction
Detection
"
Malfunction
"
Decision
Conditions
"
Supposed
Causes
"
Troubleshooting
66
When there is no zero-cross detection in approximately 10 continuous seconds.
When the information saved in E
Faulty indoor unit PCB
Replace the indoor unit PCB.
2
PROM cannot be read.
Si04-115
Service Diagnosis