Carrier QHC Series Service Manual page 35

9.4.14 Point check function
Press the LED DISPLAY or LED or MUTE button of the remote controller three times, and then press
the AIR DIRECTION or SWING button three times in ten seconds, the buzzer will keep ring for two
seconds. The air conditioner will enter into the information enquiry status. You can press the LED
DISPLAY or AIR DIRECTION button to check the next or front item's information.
When the AC enter the "information enquiry" status, it will display the code name
details are as follows.
Enquiry information
T1
T2
T3
T4
T2B
TP
TH
Targeted Frequency
Actual Frequency
Indoor fan speed
Outdoor fan speed
EXV opening angle
Compressor continuous running time
Causes of compressor stop.
Reserve
Reserve
Reserve
Reserve
Reserve
Reserve
Reserve
Reserve
Reserve
Reserve
Reserve
Reserve
Reserve
Displaying code Meaning
T1 T1 temp.
T2 temp.
T2
T3 T3 temp.
T4 temp.
T4
Tb T2B temp.
TP TP temp.
TH temp.
TH
FT Targeted Frequency
Actual Frequency
Fr
IF Indoor fan speed
Outdoor fan speed
OF
EXV opening angle
LA
CT Compressor continuous
running time
ST Causes of compressor
stop.
A0
A1
0
1
2
3
4
5
6
L
A
U
T
33
in 2 seconds, the