Fujitsu AS*G09KXCA Series Service Instruction page 47

Trouble shooting 10
INDOOR UNIT Error Method:
Plasma air clean unit Vdd Error
Detective Actuators:
Plasma air clean unit is defect
Indoor unit controller PCB defect
Forecast of Cause:
1. Plasma air clean unit is defect
2. Indoor unit controller PCB defect
Check 1 : is the front panel completely closed and in the right position?
OK
Check 2 : some foreign body's such as dust doesn't adhere,
- the air clean unit has no good contact
- the wiring between pcb and air clean unit is loose
If there is no any abnormality
Replace: the Plasma air clean unit is defect /Indoor unit controller PCB.
Indicate or Display:
Indoor Unit :
Operation indicator: 5 time Flash
Timer indicator : 4 time Flash
Economy indicator: Continuous Flash
Error code : [ E : 54 ]
Detective details:
・The air clean operation signal was detected for 1 minute at the time of
air clean mode OFF.
02-14