Mitsubishi MXZ-2A52VA Service Manual download pdf (Page 126)

126

9 times

Lighting

Inverter check mode

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.

LED1(Red) LED2(Yellow)

Abnormal point / Condition Correspondence

Indication

Condition

No.

Symptom

Outdoor unit

operates

normally.

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”.

OFF

2.5-second OFF

0.5-second ON

NOTE 1. The location of LED is illustrated at the right figure. Refer to 13-7.6.

2. LED is lighted during normal operation.

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Mitsubishi MXZ-2A52VA Service Manual Page 126