Outdoor Unit Network
Communication 1 Error
OK
Communication PCB connection check
Communication PCB check
OK
Communication line connection, open check
OK
OK
Check Point 5 : Check the communication PCB (outdoor unit/ indoor unit/ RB unit)
OK
Outdoor unit Main PCB
1. Noise, momentary open, voltage drop 2. Indoor unit or RB unit power off
3. Communication line connection defective 4. Terminal resistor setting mistake
5. Communication PCB mounting defective, Communication PCB defective 6. Controller PCB defective
Check Point 1 : Noise, momentary open, voltage drop
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 2 : Check the indoor unit or RB unit power supply
Main power ON check
Power cable connection and open check
Check Point 3 : Check the communication line connection
DIP-SW SET4-1 is OFF.
No communication for 180 seconds or more from an indoor unit which received
communication once and no Outdoor unit network communication 2 error.
Check Point 4 : Check the Terminal resistor setting
Terminal resistor setting check
Check Point 6 : Replace Main PCB (outdoor unit/ indoor unit/ RB unit)
Change Main PCB and set up the original address.
Indoor Unit : No display /
Operation LED 1 times Flash, Timer LED 4 Times Flash,
Filter LED Continuous Flash.
Outdoor Unit : E. 1 4. 1
Error Code : 1 4 / 1 6 / 1 4. 1 / 1 4. 3 *
Trouble shooting 5 E14.1
Indicate or Display:
Detective Actuators:
Detective details:
OUTDOOR UNIT Error Method:
Forecast of Cause :
Refer to SERVICE INFORMATION Network communication Abnormal
* Indoor unit indicates No display or 1 4
Peripheral device indicates 1 4 or 16.
04-14
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