LG L3-C363LA0 Service Manual page 40

Electronic Parts Troubleshooting Guide
6. When Heating does not operate
Check if connection line (Indoor/Outdoor) is complied with Wiring Diagram.
40 MPS Multi Air Conditioner
Operate "Heating Mode(
remote control is higher than one of the indoor temperature by 2°C at
least.
In heating Mode, the indoor fan operates in case the pipe temperature
is higher than 28°C.
Check the connector of intake and pipe sensor(thermistors)
• Check the related circuit of R02H(12.1K), R01H(1.0K), R04H(6.2K),
R03H(1.0K).
• Check the indoor room temperature is disconnected or not (about
10KΩ/at 25°C).
• Check the indoor pipe temperature is disconnected or not (about
5KΩ/at 25°C).
Good connection
Check Outdoor Unit
(PCB Ass'y)
Turn ON Main Power
)" by setting the desired temperature of the
Bad connection
Correct connection line