LG TM-1830C2L Svc Manual page 49

6. When Heating does not operate
Operate "Heating Mode(
remote control is higher than one of the indoor temperature by
2°C(3.6°F) at least.
In heating Mode, the indoor fan operates in case the pipe temperature
is higher than 28°C(82.4°F).
• 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[77°F]).
• Check the indoor pipe temperature is disconnected or not (about
5KΩ/at 25°C[77°F]).
Check if connection line (Indoor/Outdoor) is complied with Wiring Diagram.
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Only for training and service purposes
Turn ON Main Power
)" by setting the desired temperature of the
Check the connector of intake and pipe sensor(thermistors)
Good connection
Check Outdoor Unit
(PCB Ass'y)
Bad connection
Correct connection line
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