Check electrical connection and setting

INSTALLATION PARTS

Troubleshooting

The table below give indication about self diagnostic routine. Some of error code requires activities exclusively for Authorized Service Center.

Outdoor unit

If an error occurs during the operation, it is displayed on the outdoor unit PCB LED, both MAIN PCB and INVERTER PCB.

No.	Error	Meaning	Remarks
No.	Code	Meaning	Remarks
		Error due to repeated address setting(when 2	Check on repeated indoor unit main
1	E108	or more devices has same address within the	Check on repeated indoor unit main
1	E108	or more devices has same address within the	address
		network)	address
		network)
2	E121	Error on indoor temperature sensor of indoor	Indoor unit Room Thermistor Open/
2	E121	unit(Short or Open)	Short
3	E122	Error on EVA IN sensor of indoor unit(Short or	Indoor unit EVA_IN Thermistor Open/
3	E122	Open)	Short
4	E123	Error on EVA OUT sensor of indoor unit(Short or	Indoor unit EVA_OUT Thermistor
4	E123	Open)	Open/Short
5	E153	Error on float switch (2nd detection)	"Indoor unit Float Switch Open/Short
5	E153	Error on float switch (2nd detection)	Drain Pump operation Check"
			Drain Pump operation Check"
6	E154	RPM feedback error of indoor unit	Check on indoor unit indoor Fan
6	E154	RPM feedback error of indoor unit	operation
			operation
7	E162	Outdoor unit EEPROM Read/Write error (H/W)	Check Outdoor EEPROM PBA
8	E163	Outdoor unit EEPROM Read/Write error (Option)	Check Outdoor EEPROM Data
9	E198	Error on thermal fuse of indoor unit (Open)	Thermal Fuse Open Check of indoor
9	E198	Error on thermal fuse of indoor unit (Open)	unit Terminal Block
			unit Terminal Block
		"Communication error between indoor and
10	E201	outdoor unit(Installation number setting error	Check indoor quantity setting in
10	E201	repeated indoor unit address,indoor unit	outdoor
		communication cable error)"
		"Communication error between indoor and	Check electrical connection and setting
11	E202	outdoor unit(Communication error on all indoor	Check electrical connection and setting
11	E202	outdoor unit(Communication error on all indoor	between indoor unit and outdoor unit
		unit, outdoor unit communication cable error)"
12	E205	Communication error on all PBA within the	-
12	E205	outdoor unit C-Box,communication cable error	-
13	E206	E206-C002 : Fan PBA communication error,	-
13	E206	E206-C003 : INV PBA communication error	-
14	E221	Error on outdoor temperature sensor (Short or	Check Outdoor sensor Open / Short
14	E221	Open)	Check Outdoor sensor Open / Short
15	E231	Error on outdoor COND OUT sensor (Short or	Check Cond-Out sensor Open / Short
15	E231	Open)	Check Cond-Out sensor Open / Short

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