Carrier 38MHRC - Page 25

38MHRC: Service Manual
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
25
Point Check Function
Press the remote controller LED three times, and then press SWING three times within ten seconds (the buzzer rings for two seconds). The air
conditioner enters the information enquiry status.
Press LED or SWING to check the next or previous code in the sequence, respectively. When the air conditioner enters the information enquiry status,
it displays the code name for 2 seconds. When the air conditioner enters the information enquiry status, it displays the code value in the next 25
seconds.
Table 10 — Enquiry Information
Displayed Code Explanation Displayed Value Meaning Additional Notes
T1 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 the to 70 °C. T5
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 appear.
T2 Indoor coil temperature
T3
Outdoor coil
temperature
T4 Ambient temperature
Tb
Outlet temperature
of indoor coil
T5 Discharge temperature
FT Targeted frequency
Fr Actual frequency
IF Indoor fan speed
0
1,2,3,4
OFF, Low speed, Medium speed,
High speed, Turbo.
Actual fan speed is equal to the
display value converted to the
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 14-FF
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 is displayed.
ST
Causes of compressor
stop
0-99
For a detailed explanation, contact
technical support.
-
Displayed Code Explanation Displayed Value Meaning Additional Notes
A0
Reserved
0-FF
2-28
5-20
5-25
--
A1
b0
b1
b2
b3
b4
b5
b6
dL
Ac
Ub
Td
dA
d5
dT