10 Troubleshooting
Troubleshooting in check mode
SMGB0091 rev.2 - 11/2015
262
Item
Item
Indication data
Check
number Indic. Indic.
Contents
Input/output state of RASC micro-
computer
01
SC
Indicates only for the segments corresponding to the equipment in the
figure. (See figure above (*1))
Total capacity of operating indoor unit
02
oP 11
00~199
In case that capacity is higher than 100, the last two digits flash.
Control software Number
03
SP 11
Control Software Number in use is indicated. Alternately upper 2
digits and lower 2 digits are indicated every 0.5 sec.
Inverter software Number
04
iP 11
Control Software Number in use is indicated. Alternately upper 2
digits and lower 2 digits are indicated every 0.5 sec.
Inverter order frequency to compressor
05
HI 74
0~115 ( Hz)
In case that frequency is higher than 100Hz, the last two digits flicker.
Air flow ratio
06
Fo 80
00~15
RASC unit expansion valve opening
07
Eo 30
00~100 (%)
In case that expansion valve opening is 100%, “
00
” flashes
Discharge pressure (high)
08
Pd 30
0.1 to 4.9 MPa
Temperature at the top of compressor
09
d 02
01~142 (ºC)
In case that temperature is higher than 100ºC, the last two digits flash
Evaporating temperature at heating
10
E 2
-19~80ºC
Ambient air temperature
11
o -3
-19~80ºC
Inverter fin temperature
12
F 20
-10~100 (ºC)
In case that temperature is 100 ºC, “
00
” flashes.
Inverter primary current
13
A1 12
00~199 (A)
In case that current is higher than 100ºC, the last two digits flash
Inverter secondary current
14
A2 20
00~199 (A)
In case that current is higher than 100ºC, the last two digits flash
Indoor unit address
15
nA 00
00~63
These items indicate the respective
data for the different connected indoor
units.
The right character of the indication
represents the indoor unit setting
number.
•
1st indoor unit: A
•
2nd indoor unit: b
•
3rd indoor unit: c
•
4th indoor unit: d
•
5th indoor unit: F
•
6th indoor unit: G
Indoor unit expansion valve opening
16
EA 20
00~100 (%)
In case that opening is
100%, “
00
” flashes.
Liquid pipe temperature of indoor unit
(freeze protection)
17
LA 05
-19~127 (ºC)
In case that temperature is
higher than 100ºC, the last
two digits flash.
Indoor unit intake air temperature
18
iA 28
-19~127 (ºC)
In case that temperature is
higher than 100ºC, the last
two digits flash.
Indoor unit discharge air temperature
19
oA 20
-19~127 (ºC)
In case that temperature is
higher than 100ºC, the last
two digits flash.
Cause of indoor unit stoppage
20
dA 05
(See table at the next pages)
Total accumulated operation time of
compressor
21
U 00
0 to 9999 (x 10 hours)
Alternately upper 2 digits and lower 2 digits are indicated every 0.5
sec.
Accumulated operation time of
the compressor (can be reset to
zero, example, when compressor is
replaced)
22
cU 00
0 to 9999 (x 10 hours)
Alternately upper 2 digits and lower 2 digits are indicated every 0.5
sec.
Alarm code for abnormal stoppage of
compressor
23
AC 08
Alarm code on compressor
Cause of stoppage at inverter
24
i
1
(See table at the next pages)
Abnormal data record
25
n1 00
One of the abnormal data record from latest (n1) to oldest (n9) is
indicated. Alarm code or cause code is indicated.
Total capacity of indoor unit connected
26
CP 22
00~199
In case that capacity is higher than 100, the last two digits flash.
Number of connected indoor units
27
AA
2
00~64
Refrigerant address
28
GA
0
00~63