AlarmCode | Alarm meaning |
---|---|
E01 | Remote Controller Reception Error |
E02 | Remote Controller Transmission Error |
E03 | Error in Indoor Unit Receiving Signal from Remote Controller (central) |
E04 | Error in Indoor Unit Receiving Signal from the Outdoor unit |
E05 | Error in Indoor Unit Transmitting Signal to the Outdoor Unit |
E06 | Error in the Outdoor Unit Receiving Signal from the Indoor Unit |
E07 | Error in Outdoor Unit Transmitting Signal to the Indoor Unit |
E08 | Duplicate Indoor Unit Address Settings Error |
E09 | More Than One Remote Controller Set to Main Error |
E12 | Start of Auto Address Setting Prohibited Due to Auto Address Setting Being in Progress |
E13 | Error in Indoor Unit Transmitting Signal to Remote Controller |
E15 | Auto-Address Alarm (not enough units) |
E16 | Auto-Address Alarm (too many units) |
E18 | Faulty Communication in Group Control Wiring |
E20 | No Indoor Units Error |
E30 | Outdoor Unit Serial Transmission Error |
F04 | Compressor Discharge Temperature Sensor Error |
F07 | Heat Exchanger Inlet Temperature Sensor (C1) Error |
F08 | Outdoor Air Temperature Sensor (TO) Error |
F12 | Compressor Intake Temperature Sensor (TS) Error |
F16 | High Pressure Sensor Error |
F31 | Outdoor Unit Nonvolatile Memory (EEPROM) Error |
H01 | Primary Current (Input) Detect of Overcurrent |
H02 | PAM Error |
H03 | Compressor CT Sensor (Current Sensor) Unplugged |
H31 | HIC Error |
L04 | Duplicated Setting of Outdoor System Address Error |
L10 | Outdoor Unit Capacity Not Yet Setup Error |
L18 | 4-way valve operation failure |
P03 | Compressor Discharge Temperature Error |
P04 | Actuation of High Pressure Switch |
P05 | Power Supply Error |
P13 | Forgot-to-open Valve Alarm |
P14 | O2 Sensor |
P16 | Overcurrent of Inverter Compressor |
P22 | Outdoor Fan Motor Error |
P29 | INV Compressor Start-up Failed (including lock) Due to INV Compressor Wiring Open Phase, Faulty DCCT, etc. |
If an outdoor unit displays an alarm, conduct this process after diagnosing the problem.
1 Auto Address |
1-1 |
Is the power of the indoor unit(s) and outdoor unit(s) on? |
Yes | 2-1 | ||||||||||||
No | Power on | |||||||||||||||
2 Indoor/ outdoor control line | 2-1 | Has the wiring of the indoor/outdoor control line been completed? Is it all connected? |
Yes | 2-2 | ||||||||||||
No | Connect wiring | |||||||||||||||
2-2 | Has high voltage (over AC200V) been applied to the control line circuit? Has the fuse on the control PC board blown? (Check each board of the indoor unit(s) and outdoor unit(s).) |
Yes | 2-3 | |||||||||||||
No | 3-1 | |||||||||||||||
2-3 |
The power line and indoor/outdoor control line are miswired. Turn off the power, check & correct the miswiring and then make connections of the indoor/outdoor control lines to the emergency side of all the control PC boards and controllers. | |||||||||||||||
3 Installation or setting related | 3-1 | Check the setting of the number of indoor units on the outdoor control PC board. Is the setting the same as the number of indoor units that are actually connected? | Yes | 3-2 | ||||||||||||
No | Correct the setting | |||||||||||||||
3-2 | Is the indoor/outdoor control line connected to more than one outdoor unit? (Network wired?) | Yes | 3-3 | |||||||||||||
No | 3-6 | |||||||||||||||
3-3 | Is the Terminal resistor select switch on the outdoor control PC board set to just one unit? | Yes | 3-4 | |||||||||||||
No | Correct the setting | |||||||||||||||
3-4 | Are other outdoor units using a duplicate setting? | Yes | 3-5 | |||||||||||||
No | 3-6 | |||||||||||||||
3-5 | When units are networked, first set the system address for each outdoor unit in the order 1-2-3 and then run auto address setting. | |||||||||||||||
3-6 | Run the auto address setting. |