Mitsubishi Electric PUHZ-FRP71VHA Service Manual page 67

SW2 setting
Indoor setting temperature
ON
17 – 30
1 2 3 4 5 6
Outdoor pressure sensor saturated
ON
temperature (63HS)
-39 – 88
1 2 3 4 5 6
Outdoor temperature (TH7)
ON
-39 – 88
1 2 3 4 5 6
Outdoor heatsink temperature (TH8)
-40 – 200
ON
1 2 3 4 5 6
Discharge superheat SHd
0 – 255
ON
TH4 - 63HS
1 2 3 4 5 6
Number of defrost cycles
0 – FFFE
ON
1 2 3 4 5 6
Input current of outdoor unit
ON
1 2 3 4 5 6
Sub cool step
ON
1 2 3 4 5 6
U9 error detail history (latest)
ON
1 2 3 4 5 6
OCH544
Display detail
67
The black square ( ) indicates a switch position.
Explanation for display
17 – 30
-39 – 88
(When the temperature is 0: or less, "–" and
temperature are displayed by turns.)
-39 – 88
(When the temperature is 0: or less, "–" and
temperature are displayed by turns.)
-40 – 200
(When the temperature is 0: or less, "–" and
temperature are displayed by turns.)
(When the thermistor detects 100: or more,
hundreds digit, tens digit and ones digit are displayed
by turns.)
0 – 255
(When the temperature 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 's and 16 's places.
1 0
(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.)
1 – 5
Description
(No error)
Overvoltage error
Undervoltage error
Input current sensor error
L -phase open error
1
Abnormal power synchronous signal
PFC error
(Overvoltage / Undervoltage / Overcurrent)
PFC/ IGBT error
(Undervoltage)
* Display examples for multiple errors:
Overvoltage (01) + Undervoltage (02) = 03
Undervoltage (02) + Power-sync signal error (08) = 0A
L phase open error (04) + PFC error (10) = 14
1
's and 16 's, and
3 2
0.5 secs. 2 secs.
9 C4
Display
00
01
02
04
08
10
20
Unit
°C
°C
°C
°C
°C
2 cycles
0.1 A
Step
Code
display