Test 3 : Replace Main PCB
Test 2 : Check Indoor unit electric components
1. External cause 2. Defective connection of electric components 3. Main PCB failure
Test 1-1 : Reset Power Supply and operate
Does Error indication show again?
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).
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.
If Test 1 - 2 do not improve the symptom, replace Main PCB.
(SERVICE PARTS INFORMATION 10)
Check all connectors.
(loose connector or incorrect wiring)
Check any shortage or corrosion on PCB.
OK
NO
YES
Trouble shooting 14
INDOOR UNIT Error Method:
Outdoor Unit Model Information Error
Outdoor unit main PCB
When power is on and there is some below case.
When model information of EEPROM is incorrect.
Detective Actuators: Detective details:
Indicate of Display:
When the access to EEPROM failed.
Forecast of Cause:
02-19
Indoor Unit
Outdoor Unit
Operation lamp : 6 time Flash
ERROR CODE : [E : 62]
Timer lamp: 2 time Flash
Monitor
ABCDEF
6
: Light ON : Light OFF n : n time blinking
2
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