Troubleshooting 10
Displayed code
Explanation
Displayed
value
Meaning
Additional Notes
T1
T2
T3
T4
Tb
TP
TH
FT
Fr
Room temperature
-1F,-1E,-1d,-1c,-
1b,-1A
-19—99
A0,A1,…A9
b0,b1,…b9
c0,c1,…c9
d0,d1,…d9
E0,E1,…E9
F0,F1,…F9
-25,-24,-23,-22,
-21,-20
-19—99
100,101,…109
110,111,…119
120,121,…129
130,131,…139
140,141,…149
150,151,…159
1. All displayed temperatures
use actual values.
2. All temperatures are
displayed in °C regardless
of remote used.
3. T1, T2, T3, T4, and T2B
display ranges from -25 to
70 °C. TP display ranges
from -20 to 130 °C.
4. The frequency display
ranges from 0 to 159HZ.
5. If the actual values exceed
or fall short of the defined
range, the values closest
to the maximum and
minimum values will be
displayed.
Indoor coil
temperature
Outdoor coil
temperature
Ambient
temperature
Outlet temperature
of indoor coil
Discharge
temperature
Suction temperature
Targeted frequency
Actual frequency
IF
Indoor fan speed
0
1,2,3,4
14-FF
OFF
Low speed, Medium
speed, High speed,
Turbo.
Actual fan speed is
equal to the display
value converted to
decimal value and
multiplied by 10. This
is measured in RPM.
N/A
Used for some large capacity
motors.
Used for some small capacity
motors.
The display value is 14-FF
(hexadecimal). The
corresponding fan speed
ranges from 200 to 2550RPM.
OF
Outdoor fan speed
LA
EXV opening angle
0-FF
Actual EXV opening
value is equal to
the display value
converted to decimal
value and then
multiplied by 2.
-
CT
Compressor
continuous running
time
0-FF
0-255 minutes
If the actual value exceeds
or falls short of the defined
range, the value closest to the
maximum and minimum will
be displayed.
ST
Causes of
compressor stop
0-99
For a detailed
explanation, contact
technical support.
-
Summary of Contents for DIY-MULTI2-18HP230C
Page 1: ...4TH GENERATION MULTI ZONE SERVICE MANUAL...
Page 2: ......
Page 5: ......
Page 6: ...Contents 1 Precautions 2 2 Information servicing For flammable materials 3 Safety Precautions...
Page 20: ...5 8...
Page 21: ......
Page 22: ......
Page 24: ...Outdoor unit printed circuit board diagram 17122000051368...
Page 27: ...Outdoor unit printed circuit board diagram 17122300001076...
Page 29: ...Outdoor unit IPM board diagram 17122000018251...
Page 31: ...Outdoor unit printed circuit board diagram 17122000037804...
Page 33: ...Outdoor unit IPM board diagram 17122000042012...
Page 42: ...Outdoor Unit Disassembly 3 2 Dimension 2 1 Panel Plate B30 1 drive 2...
Page 43: ...Outdoor Unit Disassembly 4 2 2 Panel Plate CA30 1 drive 2 1 drive 3 1 drive 4...
Page 44: ...Outdoor Unit Disassembly 5 2 3 Panel Plate CA30 1 drive 2 for US models...
Page 45: ...Outdoor Unit Disassembly 6 2 4 Panel Plate D30 1 drive 2 1 drive 3 1 drive 4 1 drive 5...
Page 46: ...Outdoor Unit Disassembly 7 2 5 Panel Plate D30 1 drive 3 1 drive 4 for US models...
Page 47: ...Outdoor Unit Disassembly 8 2 6 Panel Plate X330 1 drive 2...
Page 48: ...Outdoor Unit Disassembly 9 2 7 Panel Plate X430 1 drive 3...
Page 49: ...Outdoor Unit Disassembly 10 2 8 Panel Plate X430 1 drive 2 for US models...
Page 50: ...Outdoor Unit Disassembly 11 2 6 Panel Plate E30 1 drive 5 for US models...