Trouble shooting 9 E16. 1
INDOOR UNIT Error Method:
Transmission PCB Connection Error
Indicate or Display:
Indoor Unit : Operation LED 1 times Flash, Timer LED 6 Times Flash,
Filter LED Continuous Flash.
Outdoor Unit : E.1 4.1, 1 4.2 *
Error Code : 1 6 *
Detective Actuators:
Indoor unit Controller PCB circuit
Indoor unit Communication PCB
Detective details:
When Parallel communication error (Communication reset occurs continuously
more than specified times) is detected.
Check Point 3 : Replace Communication PCB
Replace Communication PCB (If the symptom does not
change, replace Controller PCB and set up the original
address.
Check Point 1-2 : Check outside cause such as noise
Check the complete insulation of the grounding.
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).
Check Point 1-1 : Reset the power
Check Point 2 : Check Connection
YES
NO
Does LED error indication reappear?
Check if Indoor Communication PCB is removed.
OK
Forecast of Cause : 1. Connection failure 2. Outside cause 3. Communication PCB failure 4. Controller PCB failure
* Outdoor unit indicates 1 4.1 or 14.2 (No communication from Indoor unit)
Peripheral device indicates 1 6 ( 1 6.4 Error)
Service Tool indicates 14.3 ( Missing Error Indoor unit)
04-18
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