Mitsubishi Electric M Series Manual page 549

M series
MXZ-2B
Indication
No. Symptom
LED1(Red) LED2(Yellow)
Outdoor unit
operates.
Lighting
20 5 times
Outdoor unit
21 9 times
Lighting
operates
normally.
22 Lighting
Lighting
NOTE 1. The location of LED is illustrated at the right figure.
2. LED is lighted during normal operation.
The flashing frequency shows the number of times the LED blinks after every 2.5-second OFF.
(Example) When the flashing frequency is "2".
ON
OFF
Abnormal point/Condition
Cooling high-pressure
The outdoor heat exchanger temperature exceeds 58°C during operation.
protection
Inverter check mode The unit is operated with emergency operation switch.
Normal
2.5-second OFF
MULTI SYSTEM Inverter Heat Pump
Condition
-
Display P.C. board(Parts side)
LED1 LED2
Lighting
0.5-second ON
2.5-second OFF
0.5-second ON
C-547