What does the error code displayed on the screen of the Mijia Air Conditioner Pro Eco A+++ 9K mean?
The Mijia Air Conditioner Pro Eco A+++ 9K error codes explanations are listed below:
1. The error code F1.1 represents indoor ambient temperature sensor failure;
2. The error code F1.2 represents outdoor ambient temperature sensor failure;
3. The error code F2.1 represents indoor coil temperature sensor failure;
4. The error code F2.2 represents outdoor coil temperature sensor failure;
5. The error code F2.3 represents indoor pipe temperature sensing pack failure;
6. The error code F2.4 represents outdoor pipe temperature sensing pack failure;
7. The error code F3.1 represents outdoor exhaust temperature sensor failure;
8. The error code F3.2 represents exhaust temperature sensing pack failure protection;
9. The error code E1 represents outdoor EEPROM failure;
10. The error code E3 represents communication failure between the indoor unit board and the display board;
11. The error code E6.1 represents indoor and outdoor communication: Data cannot be received indoors;
12. The error code E6.2 represents indoor and outdoor communication: Data cannot be received outdoors;
13. The error code E8.1 represents communication failure between the outdoor unit compressor chip and the fan chip;
14. The error code E8.2 represents communication failure between indoor unit board and fan chip;
15. The error code FF represents the indoor unit cannot receive the Internet module (SOC, Wi-Fi) communication failure;
16. The error code E0 represents indoor PG/DC fan failure.
17. The error code E2 (E2.1/E2.2/E2.3/E2.4/E2.5/E2.6/E2.7) represents outdoor DC fan failure;
18. The error code U0.0 represents Inverter DC over voltage fault;
19. The error code U0.1 represents Inverter DC low voltage fault;
20. The error code U0.2 represents Inverter DC voltage mutation fault;
21. The error code U0.3 represents AC input low voltage (effective value) detection fault;
22. The error code U1.1 represents Inverter module fault/inverter module hardware overcurrent fault;
23. The error code U1.2 represents outdoor current sensor failure;
24. The error code U1.3 represents compressor phase current circuit detection fault;
25. The error code U2.1 represents overcurrent protection;
26. The error code U2.2 represents overcurrent protection;
27. The error code U2.3 represents overcurrent protection;
28. The error code U3 represents drive initialization fault;
29. The error code U4.1 represents step loss detection/Compressor step loss protection;
30. The error code U4.2 represents step loss detection/Compressor step loss protection;
31. The error code U4.3 represents step loss detection/Compressor step loss protection;
32. The error code U4.4 represents step loss detection/Compressor step loss protection;
33. The error code U5 represents compressor phase loss/Reverse phase protection;
34. The error code U6.1 represents module temperature protection;
35. The error code U6.2 represents module temperature sensor circuit fault;
36. The error code U8.1 represents PFC hardware overcurrent;
37. The error code U8.2 represents PFC software overcurrent;
38. The error code U8.3 represents PFC RMS overcurrent protection;
39. The error code C1 represents module current (compressor phase current) protection limit/frequency reduction;
40. The error code C2 represents external AC current protection limit/frequency reduction;
41. The error code C3 represents compressor module temperature limit frequency reduction;
42. The error code C4 represents whole machine current peak limit frequency reduction;
43. The error code C5 represents drive protection limit/frequency reduction;
44. The error code P1 represents outdoor unit exhaust temperature over-high protection;
45. The error code P2 represents limit/Reduction frequency (display 17);
46. The error code P2.1 represents exhaust protection limit/reduction frequency;
47. The error code P2.2 represents anti-freezing protection limit/reduction frequency;
48. The error code P2.3 represents anti-condensation protection limit/reduction frequency;
49. The error code P2.4 represents power over-high limit/reduction frequency;
50. The error code P2.5 represents overload protection limit/reduction frequency;
51. The error code P5 represents over-cooling protection in cooling mode;
52. The error code P8 represents outdoor unit high/low temperature protection;
53. The error code PA represents refrigerant shortage protection/abnormal refrigerant circulation protection.
1. The error code F1.1 represents indoor ambient temperature sensor failure;
2. The error code F1.2 represents outdoor ambient temperature sensor failure;
3. The error code F2.1 represents indoor coil temperature sensor failure;
4. The error code F2.2 represents outdoor coil temperature sensor failure;
5. The error code F2.3 represents indoor pipe temperature sensing pack failure;
6. The error code F2.4 represents outdoor pipe temperature sensing pack failure;
7. The error code F3.1 represents outdoor exhaust temperature sensor failure;
8. The error code F3.2 represents exhaust temperature sensing pack failure protection;
9. The error code E1 represents outdoor EEPROM failure;
10. The error code E3 represents communication failure between the indoor unit board and the display board;
11. The error code E6.1 represents indoor and outdoor communication: Data cannot be received indoors;
12. The error code E6.2 represents indoor and outdoor communication: Data cannot be received outdoors;
13. The error code E8.1 represents communication failure between the outdoor unit compressor chip and the fan chip;
14. The error code E8.2 represents communication failure between indoor unit board and fan chip;
15. The error code FF represents the indoor unit cannot receive the Internet module (SOC, Wi-Fi) communication failure;
16. The error code E0 represents indoor PG/DC fan failure.
17. The error code E2 (E2.1/E2.2/E2.3/E2.4/E2.5/E2.6/E2.7) represents outdoor DC fan failure;
18. The error code U0.0 represents Inverter DC over voltage fault;
19. The error code U0.1 represents Inverter DC low voltage fault;
20. The error code U0.2 represents Inverter DC voltage mutation fault;
21. The error code U0.3 represents AC input low voltage (effective value) detection fault;
22. The error code U1.1 represents Inverter module fault/inverter module hardware overcurrent fault;
23. The error code U1.2 represents outdoor current sensor failure;
24. The error code U1.3 represents compressor phase current circuit detection fault;
25. The error code U2.1 represents overcurrent protection;
26. The error code U2.2 represents overcurrent protection;
27. The error code U2.3 represents overcurrent protection;
28. The error code U3 represents drive initialization fault;
29. The error code U4.1 represents step loss detection/Compressor step loss protection;
30. The error code U4.2 represents step loss detection/Compressor step loss protection;
31. The error code U4.3 represents step loss detection/Compressor step loss protection;
32. The error code U4.4 represents step loss detection/Compressor step loss protection;
33. The error code U5 represents compressor phase loss/Reverse phase protection;
34. The error code U6.1 represents module temperature protection;
35. The error code U6.2 represents module temperature sensor circuit fault;
36. The error code U8.1 represents PFC hardware overcurrent;
37. The error code U8.2 represents PFC software overcurrent;
38. The error code U8.3 represents PFC RMS overcurrent protection;
39. The error code C1 represents module current (compressor phase current) protection limit/frequency reduction;
40. The error code C2 represents external AC current protection limit/frequency reduction;
41. The error code C3 represents compressor module temperature limit frequency reduction;
42. The error code C4 represents whole machine current peak limit frequency reduction;
43. The error code C5 represents drive protection limit/frequency reduction;
44. The error code P1 represents outdoor unit exhaust temperature over-high protection;
45. The error code P2 represents limit/Reduction frequency (display 17);
46. The error code P2.1 represents exhaust protection limit/reduction frequency;
47. The error code P2.2 represents anti-freezing protection limit/reduction frequency;
48. The error code P2.3 represents anti-condensation protection limit/reduction frequency;
49. The error code P2.4 represents power over-high limit/reduction frequency;
50. The error code P2.5 represents overload protection limit/reduction frequency;
51. The error code P5 represents over-cooling protection in cooling mode;
52. The error code P8 represents outdoor unit high/low temperature protection;
53. The error code PA represents refrigerant shortage protection/abnormal refrigerant circulation protection.
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