Mitsubishi Electric PUHZ-W50VHA-BS Service Manual page 75

SW2 setting
Sub cool (SC)
0~130
Cooling: SC = T
Heating: SC = T
ON
<From 17U***** (unit No.) onward>
Number of defrost cycles
1 2 3 4 5 6
0 – FFFE
Input current of outdoor unit
ON
0~500
1 2 3 4 5 6
LEV-B opening pulse
ON
0~500
1 2 3 4 5 6
U9 error detail history (latest)
ON
1 2 3 4 5 6
Direct current bus voltage
ON
150~400 (W50/85V, HW140V)
300~750 (HW112/140Y)
1 2 3 4 5 6
Capacity save
0 ~ 100
ON
When there is no setting
of capacity save, "100" is
1 2 3 4 5 6
displayed.
Deferred error history (2)
of outdoor unit
ON
1 2 3 4 5 6
Deferred error history (3)
ON
of outdoor unit
1 2 3 4 5 6
OCH439H
Display detail
-TH3
63HS
-TH6
63HS
75
The black square (
Explanation for display
0~130
(When the SC is 100°C or more, hundreds digit, tens
digit and ones digit are displayed by turns.)
0 – FFFE (in hexadecimal notation)
(When more than FF in hex (255 in decimal), the
number is displayed in order of 16
16 1 's and 16 0 's places.
(Example) When 5000 cycles;
0.5 secs.
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.)
Error details
(No error)
Over voltage Power PCB
Insuffi cient voltage Power PCB
Input current sensor
Control PCB
error
Abnormal power
synchronous signal Power PCB
(W50)
PFC error (W50)
(Over voltage,
Power PCB
insuffi cient voltage,
over current)
ACTM error Control PCB
150~400 (W50/85V, HW140V)
300~750 (HW112/140Y)
(When it is 100V or more, hundreds digit, tens
digit and ones digit are displayed by turns.)
0~100
(When the capacity is 100%, hundreds digit, tens
digit and ones digit are displayed by turns.)
(Example) When 100%;
0.5 secs.
Deferred error code display
Blinking: being deferred
Lighting: deferment is cancelled
"00" is displayed in case of no deferment.
Deferred error code display
Blinking: being deferred
Lighting: deferment is cancelled
"00" is displayed in case of no deferment.
■
) indicates a switch position.
3 's and 16 2 's, and
0.5 secs. 2 secs.
9 C4
Cause Code
— 00
01
02
04
08
10
20
0.5 secs. 2 secs.
1 00
Unit
°C
2 cycles
0.1 A
Pulse
Code
display
V
%
Code
display
Code
display