Error description
Error code
1. COND mid sensor is detached
E241
2. Refrigerant leakage (2nd detection)
E554
3. Abnormally high temperature on Cond (2nd detection)
E450
4. Low pressure s/w (2nd detection)
E451
5. Abnormally high temperature on discharged air on outdoor unit (2nd detection)
E416
6. Indoor unit shut-down due to unconfirmed error on outdoor unit
E559
7. Error due to reverse phase detection
E425
8. Comp stop due to freeze detection (6th detection)
E403
9. High pressure sensor is detached
E301
10. Low pressure sensor is detached
E306
11. Outdoor unit compression ratio error
E428
12. Outdoor sump down_1 protection control
E413
13. Compressor down due to low pressure sensor protection control_1
E410
14. Simultaneous opening of cooling/heating MCU SOL valve (1st detection)
E180
15. Simultaneous opening of cooling/heating MCU SOL valve (2nd detection)
E181
Other outdoor unit self-diagnosis errors that are not on the above list
EEPROM error
E162
EEPROM option error
E163
Error due to incompatibility with an indoor unit that special consumption tax is applied.
E164
❋
If you turn off the air conditioner when the error display is on, all the displays are turned off.
❋
If you re-operate the air conditioner, it will operate normally at first, then detect and display an error again.
❋
When E108 error occurs, change the address and reset the system.
e.g. When the address of the indoor unit #1 and #2 are set as 5, address of the indoor unit #1 will become 5 and indoor
unit #2 will display E108, A002.
Checking after installation
f
Before supplying power to the product, measure the grounding resistance of power terminal (3 phases: R,S,T,N/1 phase:
L,N) and outdoor unit by using a DV 500 V insulation resistance tester.
- Measured value should be 30 MΩ or above.
t
Do not measure the communication terminal as the communication circuit of it can be damaged.
t
Check whether the communication terminal becomes short circuit by using a circuit tester.
CAUTION
Troubleshooting
ENGLISH-34
Summary of Contents for AM140RNPDKH Series
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