Outdoor unit microcomputer
self-check error
YES NO
Outdoor unit Main PCB
1. Noise, momentary open, voltage drop 2. Defective connection of electric component 3. Main PCB defective
Check if temporary voltage drop was not generated.
Check if momentary open was not generated.
Check if ground is connection correctly
or there are no related cables near the power line.
Check Point 3 : Replace Main PCB
Change Main PCB and set up the original address.
Check Point 1-1 : Turn the power on again.
Error generated again and the power was turned back on?
Check Point 1-2 : Noise, momentary open, voltage drop
Indoor Unit : Operation LED 9 times Flash, Timer LED 15 Times Flash,
Filter LED Continuous Flash.
Outdoor Unit : E. 6 2. 9
Error Code : 9 U / 6 2
Trouble shooting 30-1 E62. 9
Indicate or Display:
Detective Actuators:
Detective details:
OUTDOOR UNIT Error Method:
Forecast of Cause :
04-42
When the error is detected by the self-diagnosis of a microcomputer
Check Point 2 : Check Outdoor Unit electric components
Check all connectors (loose connector or incorrect wiring)
Check any shortage or corrosion on PCB.
OK