Mitsubishi Electric PUHZ-W90VHA Service Manual page 34

SW2 setting
Input current of outdoor unit
0~500
ON
1 2 3 4 5 6
LEV-B opening pulse
0~500
ON
1 2 3 4 5 6
U9 error detail history(latest)
ON
1 2 3 4 5 6
Direct current bus line voltage
150~400
ON
1 2 3 4 5 6
Deferred error history (2)
of outdoor unit
ON
1 2 3 4 5 6
Deferred error history (3)
of outdoor unit
ON
1 2 3 4 5 6
Error code history (3) (Oldest)
Faulty unit number and error code are
displayed alternately.
ON
1 2 3 4 5 6
Error thermistor display
When there is no error thermistor,
ON
"–" is displayed.
1 2 3 4 5 6
Display detail
Explanation for display
0~500
(When it is 100 or more, hundreds digit, tens digit
and ones digit are displayed by turns.)
0~500
(When it is 100 pulse or more, hundreds digit, tens
digit and ones digit are displayed by turns.)
Cause
Error details
(No error)
Over voltage Power PCB
Insufficient
Power PCB
voltage
Input current
Control PCB
sensor error
ACTM error Control PCB
150~400
(When it is 100V or more, hundreds digit, tens
digit and ones digit are displayed by turns.)
Deferred error code display
Blinking: being deferred
Lighting: deferment cancelled
"00" is displayed in case of no deferment.
Deferred error code display
Blinking: being deferred
Lighting: deferment cancelled
"00" is displayed in case of no deferment.
When no error history, "0" and "– –" are displayed by
turns.
3: Liquid pipe thermistor (TH3)
3: Water inlet temp. thermistor (TH32)
6: Plate HEX liquid pipe thermistor (TH6)
7: Ambient temp.thermistor (TH7)
8: Heatsink thermistor (TH8)
34
Unit
0.1 A
Pulse
Code
00
01
02
Code
04
display
20
V
Code
display
Code
display
Code
display
Code
display