Fujitsu ASU7RLF1 Service Instructions Manual page 39

Trouble shooting 4
INDOOR UNIT Error Method:
Indoor Unit Capacity Error
Detective Actuators:
All indoor unit
Forecast of Cause :
1. The selection of indoor units is incorrect
Check Point 1 : Check the total capacity of indoor unit
Check the total capacity of the connected indoor units.
>> If abnormal condition is found, correct it by referring
to Installation Manual or Design & Technical Manual.
OK OK
Check Point 2 : Replace Main PCB
If Check Point 1 do not improve the symptom, replace Main PCB of Outdoor unit.
Indicate or Display:
Outdoor Unit : LED 1 : 11 time Flash
Indoor Unit : Operation lamp: 2 time Flash, Timer lamp: 2 time Flash
Economy lamp: Continuous flash.
ERROR CODE : [E : 22]
Detective details:
The total capacity of the indoor unit if it is install beyond.
2. Main PCB(Outdoor unit) failure
02-07