Carrier 38MHRB series, Service Manual

Page: 22 / 74

22
Point Check Function
Press the remote controller’s LED DISPLAY or LED or MUTE button three times, and then press the AIR DIRECTION or SWING
button three times in ten seconds, the buzzer rings for two seconds. The air conditioner enters into the information enquiry status.
Press the LED DISPLAY or AIR DIRECTION button to check the next or front item’s information.
When the air conditioner enters the information enquiry status, it displays the code name in 2 seconds (see Table 14).
Table 14—Information Enquiry
ENQUIRY INFORMATION DISPLAYING CODE MEANING
T1
T1
T1 temp.
T2
T2
T2 temp.
T3
T3
T3 temp.
T4
T4
T4 temp.
T2B
Tb
T2B temp.
TP
TP
TP temp.
TH
TH
TH temp.
Targeted Frequency
FT
Targeted Frequency
Actual Frequency
Fr
Actual Frequency
Indoor Fan Speed
IF
Indoor fan speed
Outdoor Fan Speed
OF
Outdoor fan speed
EXV Opening Angle
LA
EXV opening angle
Compressor continuous running time
CT
Compressor continuous running time
Compressor stop causes
ST
Compressor stop causes
Reserve
A0
Reserve
A1
Reserve
b0
Reserve
b1
Reserve
b2
Reserve
b3
Reserve
b4
Reserve
b5
Reserve
b6
Reserve
dL
Reserve
Ac
Reserve
Uo
Reserve
Td
When the air conditioner enters the information enquiry status, it displays the code value for 25 seconds (see Table 15).
Table 15—Information Enquiry
ENQUIRY
INFORMATION
DISPLAY VALUE MEANING REMARK
T1,T2,T3,T4,
T2B,TP,TH,
Targeted
Frequency,
Actual
Frequency
-1F,-1E,-1d,-1c,
-1b,-1A
-25,-24,-23,-22,-21,-20
1. The displaying temperature is the actual value.
2. The temperature is
_
C no matter what kind of remote
controller is used.
3. T1,T2,T3,T4,T2B display range:-25~70, TP display
range:-20~130.
4. Frequency display range: 0~159HZ.
5. If the actual value exceeds the range, it displays the
maximum value or minimum value.
-19
—
99 -19
—
99
A0,A1,
…
A9 100,101,
…
109
b0,b1,
…
b9 110,111,
…
119
c0,c1,
…
c9 120,121,
…
129
d0,d1,
…
d9 130,131,
…
139
E0,E1,
…
E9 140,141,
…
149
F0,F1,
…
F9 150,151,
…
159
Indoor fan speed
/Outdoor fan speed
0 OFF
1,2,3,4
Low speed, Medium speed, High
speed, Turbo
For some big capacity motors.
14-FF
Actual fan speed = Display value
turns to decimal value and then
multiply 10. The unit is RPM.
For some small capacity motors, the display value is from 14-FF
(hexadecimal), the corresponding fan speed range
is from 200-2550 RPM.
EXV opening angle 0-FF
Actual EXV opening value =
Display value turns to decimal
value and then multiply 2.
Compressor
continuous running
time
0-FF 0-255 minutes
If the actual value exceeds the range, it displays the
maximum value or minimum value.
Compressor stop
causes
0-99
For the detailed meaning, please
consult with engineer
Decimal display
Reserve 0-FF