Outdoor Unit Operation Monitor Function; Indicator Change Of Self Diagnosis - Mitsubishi Electric Mr.SLIM PU-P71VHA Service Manual

Outdoor unit operation monitor function

Operation indicator
SW2 setting
ON
1 2 3 4 5 6
<Digital indicator LED1 working details>
· Lighting (Normal operation) : Indicating the operation mode.
(Be sure the 1 to 6 in the SW2 are set to OFF)
(1) Display when the power supply ON.
When the power supply ON, blinking displays by turns.
Wait for 4 minutes at the longest.
(2) When the display lights. (Normal operation)
1Operation mode display.
LED1
The tens digit : Operation mode
Display Operation mode
O
C COOL
H HEAT
d DEFROSTING
2Error postponing display
(Compressor stop by the protection device
working) : Display the postponement code.
Postponement code is display during the error
postponing.
(3) When the display blinks (Operation stop by the protection device working) : Display the inspection code.
An error unit number and code are displayed by turns.
<Abnormal unit number>
(4) When 7SEG display lights up (Protective device stops compressor operating.):
The screen displays the corresponding code when abnormality is being recorded.
OC379F
SW2 : Indicator change of self diagnosis
Display detail
1 second
interval
(Lighting)
OFF
<Abnormal code>
1 second
interval
Explanation for display
ON
1
The units digit : Relay output
Display Compressor 4-way valve Bypass solenoid valve
0 —
1 —
2 —
3 —
4 ON
5 ON
6 ON
7 ON
Display Inspection unit
0 Outdoor unit
1 Indoor unit 1
2 Indoor unit 2
3 Indoor unit 3
4 Indoor unit 4
58
indication
SW2
(Initial setting)
2 3 4 5 6
— —
— ON
ON —
ON ON
— —
— ON
ON —
ON ON
Unit
Code