OUTDOOR UNIT Error Method:
Outdoor Unit Transmission PCB
Parallel Communication Error
YES
OK
OK
Check Point 1-2 : Noise
Detective details:
Forecast of Cause :
NO
Detective Actuators:
Outdoor unit Main PCB
When Parallel communication error (Communication reset occurs
continuously more than specified times) is detected.
1. Noise 2. Communication PCB connection defective 3. Communication PCB defective
4. Main PCB defective
Check if ground is connection correctly or there are
no related cables near the power line.
Check Point 4 : Replace Main PCB
Change Main PCB and set up the original address.
Check Point 1-1 : Turn the power on again.
Error displayed again?
Check Point 2 : Check the communication PCB connection
Communication PCB connection ( Lose connection ) check
Check Point 3 : Check the communication PCB
Communication PCB check
No any damages on the PCB, replace the communication PCB.
Indoor Unit : Operation LED 9 times Flash, Timer LED 15 Times Flash,
Filter LED Continuous Flash. / Operation LED 1 time Flash,
Timer LED 4 Times Flash, Filter LED Continuous Flash.
Outdoor Unit : E. 6 9. 1
Error Code : 9 U / 6 9 / 1 4 / 14.1 / 14.3*
Trouble shooting 34 E69. 1
Indicate or Display:
*When this error occurs on the Slave outdoor unit, Error code 69.1 is transfered to
each device on the network.
When this error occures on the Master outdoor unit, the indoor unit on the network
indicates 14 (14.3 No communication from Outdoor unit), and Service tool indicates
14.1 (Outdoor unit Netwrok communication Error).
04-43
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