Elba R410A Guía para resolver problemas Pagina 86

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Troubleshooting Guide
- 90 -
Copyright ©2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
2) Troubleshooting CH03
Check the Volt.
Indoor Unit
V
12Vdc
12V S GND
Check the Volt.
Wired R/C
V
12Vdc
12V S GND
CN-REMO
03
Communication
Wired R/C
Open / Short
Wrong connection
Connection of wire
Main PCB Volt. DC12V
Noise interference
Display
code
Title Cause of error Check point & Normal condition
Check Point
1. Check the wire connection. (Open / Short) Repair the connection
2. Check the soldering state of connector. (Soldered poorly) Repair or Change the PCB.
3. Check the volt. Of main PCB power source. (DC 12V, DC 5V) Repair or Change the main PCB.
4. Check the installation of wired remote controller. (Noise interference) Adjust the state of installation
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