Mitsubishi Electric PUHZ-P100VHA.UK Service Manual page 69

SW2 setting
Discharge super heat on error occurring
SHd
0~255
ON
Cooling = TH4-TH6
Heating = TH4-TH5
1 2 3 4 5 6
Sub cool on error occurring. SC
0~130
ON
Cooling = TH6-TH3
Heating = TH5-TH2
1 2 3 4 5 6
Thermostat-on time until error stops
0~999
ON
1 2 3 4 5 6
Indoor pipe temperature / Liquid
(TH2 (3))
ON
Indoor 3
-39~88
1 2 3 4 5 6
Indoor pipe temperature / Cond./ Eva.
(TH5 (3))
ON
Indoor 3
-39~88
1 2 3 4 5 6
U9 Error status during the Error
postponement period
ON
1 2 3 4 5 6
Display detail
69
Explanation for display
0~255
(When the temperature is 100°C or more, hundreds
digit, tens digit and ones digit are displayed by
turns.)
(Example) When 150°C;
0.5 secs.
0~130
(When the temperature is 100°C or more, hundreds
digit, tens digit and ones digit are displayed by
turns.)
(Example) When 115°C;
0.5 secs.
0~999
(When it is 100 minutes or more, hundreds digit, tens
digit and ones digit are displayed by turns.)
(Example) When 415 minutes;
0.5 secs.
-39~88
(When the temperature is 0°C or less, "–" and
temperature are displayed by turns.)
-39~88
(When the temperature is 0°C or less, "–" and
temperature are displayed by turns.)
When there is no indoor unit, "00" is displayed.
Description
Normal
Power circuit board
Overvoltage error
Controller circuit board
Undervoltage error
Input current sensor error.
Controller circuit board
L -phase open error.
1
Power circuit board
Abnormal power synchronous signal
PFC/ ACTM errorUndervoltage
Check CNAF wiring.
Defective ACTM/ P.B.
W Display examples for multiple errors:
Overvoltage (01) + Undervoltage (02) = 03
Undervoltage (02) + Power-sync signal error (08) = 0A
0.5secs. 2 secs.
1 50
0.5secs. 2 secs.
1 15
0.5secs. 2 secs.
4
15
Detection point Display
— 00
01
02
04
08
20
Unit
:
:
Minute
:
:
Code
display