LG HMC030KD1 Service Manual - Page 20

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 : Lights up during the system operation. 0 Timer or Sleep Mode : Lights up during Timer operation or Sleep mode. o Defrost Mode : Lights up during Defrost Mode or Hot Start operation. (Heat pump model only) D'CuiIR Outdoor unit operation : Lights up during outdoor unit operation. (Cooling model only) Auto Restart Mode RESTART O Auto Restart Button : Lights up during if Restart Button is pressed. : In failure of electric power, if the button is pressed the unit runs as previous setting operation when power returns. POWER Forced Operation Button : Operation starts, when this button is pressed and stops when you press the 0 button again. Self-diagnosis Function Error Code 1 2 5 Error LED (Indoor body operation LED) n nonce) n n 141 3sec 14 3sec ili'l lI l 3sec II"I n ri - (twice) n -I-1 Fil 3sec il'il Illi 3sec Ili'l - 11 d d 11 (stinnes) - - - -"I Il 3sec ill Error contents SVC check point • Indoor room temperature thermistor open/short • Indoor pipe temperature thermistor open/short. • Outdoor pipe temperature thermistor open/short. • Indoor TH assy check • Outdoor TH assy check • Poor communication. • Communication line/circuit check - 20 -