Defrost Control - LG TB-C096TSG0 Service Manual

6. Defrost Control

• Defrost control is availavle 45 minutes later since heating mode operation started, and it will not prolong over
10 minutes.
• Defrost control is carried out when the outdoor pipe temp. falls below -6°C for more than 3 minutes after 45
minutes passed from starting of heating operation.
• Defrost ends after 10 minutes passed from starting of defrost operation or when the outdoor pipe temp. rises
over 12°C after 5 minutes passed from starting of defrost.
INDOOR FAN
COMPRESSOR
4-WAY VALVE
7. Self-diagnosis Function
• 'CHECK' will flash in the remote controller display when a problem occurs. Then please contact your dealer.
• Correct the accident point as shown in the table below before restarting operation.
• During the normal operation 'CHECK' won't be displayed in the remote controller.
Remote controller LCD
CH 01
CH 02
CH 03
CH 04 (Optional)
More than 45 minutes
The outdoor
of heating operation
piping Temp.
12°C OFF
-6°C ON
Within
10 min
3 min
ON
OFF
ON
ON OFF
Accident Point
Indoor room temperature thermistor error
Indoor piping thermistor error
Indoor main body / Remote controller unit communication error
Water level float switch error
–13–
More than 45 minutes
of heating operation
More than 10 min.
running of compressor
HOT-
START
OFF ON
ON ON
ON