Midea ATOM MDV-V56WDHN1(AtB)

Atom B Series VRF 50/60Hz
84
Midea
Atom B
Series
Service Manual
2.23.12 Specific error codes for inverter module protection
The specific error codes L0, L1, L2, L4, L5, L7, L8 and L9 can alsobe obtained from the inverter module LED indicators. If an
inverter module error has occurred, one of inverter module LED indicators is continuously on and the other one of inverter
module LED indicators flashes
Table 6-2.3: Errors indicated on LED
LED flashing pattern
Corresponding error
Flashes 4 times and stops for 1 second, then repeats
Communication malfunction between IR341/main board
Flashes 8 times and stops for 1 second, then repeats
L0 - Inverter module protection
Flashes 9 times and stops for 1 second, then repeats
L1 - DC bus low voltage protection
Flashes 10 times and stops for 1 second, then repeats
L2 - DC bus high voltage protection
Flashes 12 times and stops for 1 second, then repeats
L4 - MCE error
Flashes 13 times and stops for 1 second, then repeats
L5 - Zero speed protection
Flashes 15 times and stops for 1 second, then repeats
L7 - Phase sequence error