Display Function; Self-Diagnosis Function - LG LA120CPI Service Manual

Display Function

Signal Receptor
Receives the signals from the remote control.(Signal receiving sound: two short beeps or one long beep.)
Operation Indication Lamps
On/Off

Self-diagnosis Function

Error
Code (Indoor body operation LED)
(once)
1
3sec
(twice)
2
5
: Lights up during the system operation.
Error LED
3sec 3sec
3sec 3sec
(5times)
3sec
Error contents
• Indoor room temperature
thermistor open/short
• Indoor pipe temperature
thermistor open/short.
• Outdoor pipe temperature
thermistor open/short.
• Poor communication.
Operation
SVC check point
• Indoor TH assy check
• Outdoor TH assy check
• Communication line/circuit
check
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