OUTDOOR UNIT Error Method:
Outdoor Unit Communication PCB
Parallel Communication Error
YES
OK
OK
Check Point 2-2 : Noise
Detective details:
Forecast of Cause :
NO
Detective Actuators:
Outdoor unit Main PCB
Parallel communication (communication between master PC and Neuron
Chip) failed 5 times.
1. Wrong terminal resistor set in the transmission segment
2. Noise 3. Communication PCB connection defective
4. Communication PCB defective 5. Main PCB defective
Check if ground is connection correctly or there are
no related cables near the power line.
Check Point 5 : Replace Main PCB
Change Main PCB and set up the original address.
(Refer to 06-03 page Main PCB removal.)
Check Point 2-1 : Turn the power
on again.
Error displayed again?
Check Point 3 : Check the communication PCB connection
Communication PCB connection check
Check Point 4 : Check the communication PCB
Communication PCB check
Indoor Unit : Operation LED 9 times Flash, Timer LED 15 Times Flash,
Filter LED Continuous Flash.
Outdoor Unit : E. 69. 1
Error Code : 69
04-33
Trouble shooting 25
Indicate or Display:
OK
Check Point 1 : Check the terminal resistor setting
No terminal resitor set in the single network segment
Dual terminal resitor set in the single network segment
DIP SW SET5-4 OFF: Disable (Factory setting)
ON : Enable
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