Fujitsu ASU30RLE Service Instruction page 48

Trouble shooting 9
INDOOR UNIT Error Method:
Manual Auto Switch Error
Detective Actuators:
Indoor unit controller PCB
Indicator PCB
Manual auto switch
Forecast of Cause:
1. Manual auto switch failure
Test 1 : Check the Manual auto switch
Check if Manual auto switch is kept pressed.
Check ON/OFF switching operation by using a meter.
>> If Manual auto switch is disabled (on/off switching), replace it.
OK OK OK
Test 2 : Replace Controller PCB and Indicator PCB
If Test 1 do not improve the symptom, replace Controller PCB and Indicator PCB.
Indicate of Display:
Indoor Unit :
Operation lamp: 3 times Flash,
Timer lamp : 5 times Flash
ERROR CODE : [E : 35]
Detective details:
When the Manual Auto Switch becomes ON for consecutive 60 or
more seconds.
2. Controller PCB and Indicator PCB failure
02-12
Outdoor unit :
PUMP LOW
POWER
DOWN NOISE
ERROR
MODE (L1) (L2) (L3) (L4)
5 15
2
: Light OFF : Light ON n : n times blinking
PEAK
CUT
(L5) (L6)