Self-Diagnosis Function - Friedrich MR24UY3J Manuel D'installation

Self-diagnosis Function

Error Indicator (Outdoor)
2 Times
LED01G
(RED)
1 Sec.
1 Time
LED02G
(GREEN)
2 Sec.
MR24UY3J
Error Code
21 DC Peak(IPM Fault)
22 Max. CT(CT2)
23 DC Link Low Volt.
24 Pressure switch/Heater Sink.
26 DC Comp Position Error
27 PFC Fault Error
29 Comp Over Current
32 D-Pipe High(Inv.)
40 CT Sensor(Open/Short)
41 Inv. D-Pipe Th Error(Open/Short)
43 High Pressure Sensor(Open/Short)
44 Outdoor air Th Error(Open/Short)
45 Cond. Middle Pipe Th Error(Open/Short)
46 Suction Pipe Th Error(Open/Short)
48 Cond. Out-Pipe Th Error(Open/Short)
51 Capacity over
Communication Error(Indoor ↔ Outdoor)
53
60 EEPROM Error(Outdoor)
61 Cond. Middle Pipe High
62 Heatsink Error(High)
65 Heatsink Th Error(Open/Short)
67 BLDC motor fan lock(Outdoor)
If abnormal voltage is supplied, the protection circuits will turn off the product in order to prevent
the component damage. The product will automatically restart after 3 minutes.
2 Times 2 Times
1 Sec. 1 Sec.
1 Time 1 Time
2 Sec.
Description
Outdoor Error
Ex) Error 21 (DC Peak)
MR36UY3J
LED 1 LED 2
(Red) (Green)
2times ◑ 1time ◑
2times ◑ 2times ◑
2times ◑ 3times ◑
2times ◑ 4times ◑
2times ◑ 6times ◑
2times ◑ 7times ◑
2times ◑ 9times ◑
3times ◑ 2times ◑
4times ◑
4times ◑ 1time ◑
4times ◑ 3times ◑
4times ◑ 4times ◑
4times ◑ 5times ◑
4times ◑ 6times ◑
4times ◑ 8time ◑
5times ◑ 1times ◑
5times ◑ 3times ◑
6times ◑
6times ◑ 1times ◑
6times ◑ 2times ◑
6times ◑ 5times ◑
6times ◑ 7times ◑
Self-diagnosis Function
Indoor
status
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
0 OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
0 OFF
OFF
OFF
OFF
OFF
Installation Manual 21