12 13
TCHT011
9-2. MALFUNCTION-DIAGNOSIS METHOD BY REMOTE CONTROLLER
OPERATION
INDICATOR
lamp blink
pattern
peeBpeeBpeeBpeeBpeeB
Beep Beep
Off
Approx. 2.5 s
On
Approx. 3 s
On
0.5 s
On
0.5 s
On
0.5 s
On
0.5 s
Off
Approx. 2.5 s
On
Approx. 3 s
On
0.5 s
On
0.5 s
· · · Repeated
Number of blinks/beeps in pattern indicates the check
code in the following table (i.e., n=5 for “U2”)
Number of blinks/beeps in pattern indicates
the check code in the following table
n
th
1
st
2
nd
3
rd
1
st
2
nd
Self-check
starts
(Start signal
received)
Beeper sounds
[Output pattern B]
OPERATION
INDICATOR
lamp blink
pattern
Beep
Beep Beep Beep Beep Beep Beep
Off
Approx. 2.5 s
On
0.5 s
On
0.5 s
On
0.5 s
On
0.5 s
Off
Approx. 2.5 s
On
0.5 s
On
0.5 s
· · · Repeated
Number of blinks/beeps in pattern indicates the check
code in the following table (i.e., n=5 for “P5”)
Number of blinks/beeps in pattern indicates
the check code in the following table
n
th
1
st
2
nd
3
rd
1
st
2
nd
Self-check
starts
(Start signal
received)
Beeper sounds
• Refer to “13-7. SELF-DIAGNOSIS” to search for the error history.
[Output pattern A]
[Output pattern B] Errors detected by unit other than indoor unit (outdoor unit, etc.)
Wireless remote controller
Wired remote controller
Symptom Remarks
Beeper sounds/OPERATION
INDICATOR lamp blinks
(Number of times)
Check code
1 E9
Indoor/outdoor unit communication error
(Transmitting error) (Outdoor unit)
For details, check the LED
display of the outdoor
controller board.
As for outdoor unit, refer
to outdoor unit's service
manual.
2 UP Compressor overcurrent interruption
3 U3,U4 Open/short of outdoor unit thermistors
4 UF Compressor overcurrent interruption (When compressor locked)
5 U2
Abnormal high discharge temperature/49C operated/
insufcient refrigerant
6 U1,Ud (UD)*
Abnormal high pressure (63H operated)/Overheating
protection operation
7 U5 Abnormal temperature of heat sink
8 U8 Outdoor unit fan protection stop
9 U6 Compressor overcurrent interruption/Abnormal of power module
10 U7 Abnormality of super heat due to low discharge temperature
11 U9,UH
Abnormality such as overvoltage or voltage shortage and abnormal
synchronous signal to main circuit/Current sensor error
12 - -
13 - -
14 Others Other errors (Refer to the technical manual for the outdoor unit.)
Notes:
1. If the beeper does not sound again after the initial 2 beeps to conrm the self-check start signal was received and the OPERATION INDICATOR lamp
does not come on, there are no error records.
2. If the beeper sounds 3 times continuously “beep, beep, beep (0.4 + 0.4 + 0.4 seconds)” after the initial 2 beeps to conrm the self-check start signal
was received, the specied refrigerant address is incorrect.
[Output pattern A] Errors detected by indoor unit
Wireless remote controller
Wired remote controller
Symptom Remarks
Beeper sounds/OPERATION
INDICATOR lamp blinks
(Number of times)
Check code
1 P1 Intake sensor error
2
P2 Pipe (TH2) sensor error
P9 Pipe (TH5) sensor error
3 E6,E7 Indoor/outdoor unit communication error
4 P4 Drain sensor error/Float switch connector (CN4F) open
5
P5 Drain pump error
PA Forced compressor stop(due to water leakage abnormality)
6 P6 Freezing/Overheating protection operation
7 EE Combination error between indoor and outdoor units
8 P8 Pipe temperature error
9 E4, E5 Remote controller signal receiving error
10 – –
11 Pb Indoor unit fan motor error
12 Fb (FB)* Indoor unit control system error (memory error, etc.)
14 PL Abnormal refrigerant circuit
No sound E0, E3 Remote controller transmission error
No sound E1, E2 Remote controller control board error
No sound – – – – No corresponding
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