Fujitsu ASU30RLE Service Instruction page 53

Trouble shooting 14
OUTDOOR UNIT Error Method:
Outdoot Unit Main PCB Model
Information Error
Detective Actuators:
Outdoor unit main PCB
Forecast of Cause:
1. External cause (Noise, temporary open, voltage drop)
Test 1-1 : Reset Power Supply and operate
Does Error indication show again?
YES
Test 2 : Check Indoor unit electric components
Check all connectors.
(loose connector or incorrect wiring)
Check any shortage or corrosion on PCB.
Test 3 : Replace Controller PCB
Change Controller PCB.
Indicate of Display:
Indoor Unit :
Operation lamp: 6 times Flash,
Timer lamp : 2 times Flash
ERROR CODE : [E : 62]
Detective details:
When power is on and there is some below case.
1. When model information of EEPROM is incorrect.
2. When the access to EEPROM failed.
2. Main PCB failure
NO
Test 1-2 : Check external cause such as noise
Check if the ground connection is proper.
Check if there is any equipment that causes harmonic wave
near the power cable (Neon light bulb or any electronic
equipment which causes harmonic wave).
02-17
Outdoor unit :
PUMP LOW
POWER
DOWN NOISE
ERROR
MODE (L1) (L2)
6 2
2
: Light OFF : Light ON
Note : EEPROM
EEPROM(Electronically Erasable and
Programmable Read Only Memory) is a non-
volatile memory which keeps memorized
information even if power is turned off. It can
change the contents electronically.
To change the contents, it uses higher
voltage than normal, and it can not change a
partial contents. (Rewriting shall be done
upon erasing the all contents.)
There is a limit in a number of rewriting.
PEAK
CUT
(L3) (L4) (L5) (L6)
n : n times blinking