Check Code List
Error mode detected by indoor unit
| Operation of diagnostic function |
|
|
| ||
|
|
|
|
| Judgment and measures | |
Check | Cause of operation | Status of | Condition |
| ||
|
| |||||
code | air conditioner |
|
| |||
|
|
|
| |||
|
|
|
|
|
| |
| No communication from remote | Stop | Displayed when | 1. | Check cables of remote controller and communication adapters. | |
|
|
| ||||
E03 | controller (including wireless) and |
| • Remote controller LCD display OFF (Disconnection) | |||
(Automatic reset) | error is detected |
| ||||
| communication adapter |
| • Central remote controller [97] check code | |||
|
|
|
| |||
|
|
|
|
| ||
|
|
|
|
|
| |
| The serial signal is not output from |
|
| 1. | Outdoor unit does not completely operate. | |
| outdoor unit to indoor unit. |
|
|
| • | |
| • Miswiring of |
|
|
| ||
| Stop | Displayed when |
| • Check outdoor P.C. board. Correct wiring of P.C. board. | ||
E04 | • Defective serial sending circuit on |
| ||||
(Automatic reset) | error is detected | 2. | When outdoor unit normally operates | |||
| outdoor P.C. board |
|
| |||
|
|
|
| Check P.C. board (Indoor receiving / Outdoor sending). | ||
| • Defective serial receiving circuit on |
|
|
| ||
|
|
|
|
| ||
| indoor P.C. board |
|
|
|
| |
|
|
|
|
|
| |
E08 | Duplicated indoor unit address |
|
| 1. | Check whether remote controller connection (Group/Individual) | |
|
|
|
|
| was changed or not after power supply turned on | |
|
|
|
|
| ||
L03 | Duplicated indoor header unit |
| Displayed when |
| (Finish of group construction/Address check). | |
|
| Stop |
| * If group construction and address are not normal when the | ||
|
|
| ||||
|
| error is detected |
| |||
| There is group wire in individual indoor |
| power has been turned on, the mode automatically shifts to | |||
L07 |
|
| ||||
|
|
| ||||
unit. |
|
|
| address setup mode. (Resetting of address) | ||
|
|
|
| |||
|
|
|
|
|
| |
L08 | Unset indoor group address |
|
|
|
| |
|
|
|
|
| ||
L09 | Unset indoor capacity | Stop | Displayed when | 1. Set indoor capacity (DN=11) | ||
error is detected |
|
| ||||
|
|
|
|
| ||
|
|
|
|
| ||
L30 | Abnormal input of outside interlock | Stop | Displayed when | 1. Check outside devices. | ||
error is detected | 2. | Check indoor P.C. board. | ||||
|
|
| ||||
|
|
|
| |||
|
|
|
|
|
| |
| Float switch operation |
|
| 1. | Trouble of drain pump | |
|
| Displayed when | 2. Clogging of drain pump | |||
P10 | • Float circuit, Disconnection, | Stop | ||||
error is detected | 3. | Check float switch. | ||||
|
| |||||
|
|
| ||||
|
|
| 4. | Check indoor P.C. board. | ||
|
|
|
| |||
|
|
|
|
|
| |
|
|
| 1. | Check | ||
| Stop | Displayed when | 2. Check | |||
P19 | • After heating operation has started, | |||||
(Automatic reset) | error is detected | 3. | Check indoor heat exchanger (TC/TCJ). | |||
| indoor heat exchangers temp. is | |||||
|
|
| ||||
| down. |
|
| 4. | Check indoor P.C. board. | |
|
|
|
| |||
|
|
|
|
|
| |
| Own unit stops while warning is output | Stop | Displayed when | 1. | Judge follower unit while master unit is [E03], [L03], [L07] or [L08]. | |
P31 | (Follower unit) | 2. Check indoor P.C. board. | ||||
to other indoor units. | error is detected | |||||
| (Automatic reset) | |||||
|
|
|
|
|
| |
| Stop | Displayed when | 1. | Check indoor heat exchanger temp. sensor (TCJ). | ||
F01 | indoor heat exchanger temp. sensor | 2. Check indoor P.C. board. | ||||
(Automatic reset) | error is detected | |||||
| (TCJ) | |||||
|
|
|
|
| ||
|
|
|
|
|
| |
| Stop | Displayed when | 1. | Check indoor heat exchanger temp. sensor (TC). | ||
F02 | indoor heat exchanger temp. sensor | 2. Check indoor P.C. board. | ||||
(Automatic reset) | error is detected | |||||
| (TC) | |||||
|
|
|
|
| ||
|
|
|
|
|
| |
F10 | Stop | Displayed when | 1. | Check indoor heat exchanger temp. sensor (TA). | ||
indoor heat exchanger temp. sensor | 2. Check indoor P.C. board. | |||||
(Automatic reset) | error is detected | |||||
| (TA) | |||||
|
|
|
|
| ||
|
|
|
|
| ||
F29 | Indoor EEPROM error | Stop | Displayed when | 1. Check indoor EEPROM. (including socket insertion) | ||
• EEPROM access error | (Automatic reset) | error is detected | 2. | Check indoor P.C. board. | ||
| ||||||
|
|
| ||||
|
|
|
|
|
| |
| Communication error between indoor | Stop | Displayed when | 1. | Check indoor P.C. board. | |
E10 | MCU |
|
| |||
• Communication error between fan | (Automatic reset) | error is detected |
|
| ||
|
|
| ||||
|
|
|
|
| ||
| driving MCU and main MCU |
|
|
|
| |
|
|
|
|
|
| |
| Regular communication error between | Stop | Displayed when | 1. | Check remote controller wiring. | |
E18 | 2. | Check indoor power supply wiring. | ||||
indoor header and follower units | (Automatic reset) | error is detected | ||||
| 3. | Check indoor P.C. board. | ||||
|
|
|
| |||
|
|
|
|
|
|