Mitsubishi Electric MXZ-2B30VA, Service Manual

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71
-
-
9 times Lighting
Inverter check mode
Lighting Lighting Normal
The unit is operated with emergency operation switch.
-
5 times Lighting
Cooling high-pressure
protection
This symptom does not mean any abnormality of the
product, but check the following points.
• Check if indoor filters are clogged.
• Check if refrigerant is short.
• Check if indoor/outdoor unit air circulation is short cycled.
The outdoor heat exchanger temperature exceeds 58°C
during operation.
20
LED1(Red) LED2(Yellow)
Abnormal point / Condition Remedy
Indication
Condition No. Symptom
Outdoor unit
operates
normally.
21
22
Outdoor unit
operates.
Display P.C. board(Parts side)
Lighting
LED1 LED2
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
2.5-second OFF
2.5-second OFF
0.5-second ON
0.5-second ON
NOTE 1. The location of LED is illustrated at the right figure. Refer to 11-7.6.
2. LED is lighted during normal operation.
OBH554D