Table of Contents
Advertisement
Trouble shooting 69
RB UNIT Error Method:
RB Unit EEPROM Access Abnormal
Detective Actuators:
RB Unit Controller PCB
Forecast of Cause : 1. Outside cause 2. Defective connection of electric component 3. Controller PCB defectve
Check Point 1 : Reset Power Supply
Does Error LED indication show again?
Check Point 2 : Check RB Unit components
Check all connectors (Lose connection or incorrect wiring)
Check any shortage or corrision on PCB.
Check Point 3 : Replace Controller PCB
Change Controller PCB and Set up the original setting
EJ1. 1
Indicate or Display:
Outdoor Unit : E. 5 U.1
Indoor Unit
: Operation LED 14 times Flash, Timer LED 1 Times Flash,
Error Code
: J 1
RB Unit
: Power LED ON, Error LED Continuous Flash
Detective details:
When the EEPROM Lead Test faild 3 times at the testing process
NO
04-78
Filter LED Continuous Flash.
Check Point 1-2 :
Check outside cause (Voltage drop or noise, etc.)
Instant drop ----- Check if there is a large load electric apparatus
in the same circuit.
Momentary power failure ----- Check if there is a defective
Noise ----- Check if there is any equipment causing harmonic
wave near electric line (Neon bulb or electric
equipment that may cause harmonic wave).
Check the complete insulation of grounding.
contact or leak current in the
power supply circuit.
- Quick Links:
- Service Manual
Hide quick links:
Advertisement
Table of Contents
Troubleshooting
