Mitsubishi Electric Mr. SLIM MSZ-FA25VA Technical Manual página 761

Indication
No. Symptom
LED1(Red) LED2(Yellow)
Outdoor unit
20 Once Lighting
operates.
Twice Lighting
21
22 3 times
Lighting
4 times Lighting
23
5 times
24 Lighting
Outdoor unit
operates
25 9 times
Lighting
Lighting
26
Lighting
Abnormal point / Condition
Primary current protection When the input current exceeds 15A.
Secondary current protection When the current of the compressor exceeds 15A.
High-pressure protection When the indoor gas pipe temperature exceeds 45: during heating.
Defrosting in cooling When the indoor gas pipe temperature falls 3: or below during cooling.
Discharge temperature
When the discharge temperature exceeds 100: during operation.
protection
When the frequency of the compressor is kept 80Hz or more and
Low discharge
the discharge temperature is kept under 39: for more than 20
temperature protection
minutes.
Cooling high-pressure
When the outdoor heat exchanger temperature exceeds 58:
protection
during operation.
Inverter check mode When the unit is operated with emergency operation switch.
Normal
Resolución de averías
Condition
These symptoms do 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.
• Check refrigerant circuit and refrigerant amount.
• Refer to 12-5.T "Check of LEV".
• Refer to 12-5.V "Check of outdoor thermistors".
• Refer to 12-5.T "Check of LEV".
• Check refrigerant circuit and refrigerant amount.
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.
-
Correspondence
-
-
761