Midea MFM-24ARN1-Q Service Manual page 44

Floor Standing MFM
10.1.2 LEDs for the indication of outdoor trouble (only for 48K-50K)
Their codes are listed in the following table:
LED2(green) LED3(yellow)
On Off
Off On
Off Off
Off Flash
Off Flash
Off Off
Flash Off
On Off
Flash Flash
Flash Off
Off Flash
Flash Flash
Flash Flash
Service manual
LED4(red) Contents
Off OK
Off Standby
Flash Lack of phase
Off Phase sequence error
Communication malfunction between indoor unit
Flash
and outdoor unit
On Open- or short-circuit of T3 temperature sensor
Off Open- or short-circuit of T4 temperature sensor
On Temperature protection of compressor discharge
Off High pressure protection
Flash Low pressure protection
On Overload of current
On High temperature protection of condenser
Flash Fan jump selection error
DM16-01.01.25en
44