Mitsubishi Electric TRANE NTXAMT12A112AA Manuel D'installation page 49

14.3. Self-check
Refer to the installation manual that comes with each remote controller for details.
RF thermostat is not established.
[Output pattern A] Errors detected by indoor unit
IR wireless remote controller
Beeper sounds/OPERATION INDICATOR lamp flashes
(Number of times)
1
2
3
4
5
6
7
8
9
10
11
12
No sound
[Output pattern B] Errors detected by unit other than indoor unit (outdoor unit, etc.)
IR wireless remote
controller
Beeper sounds/
OPERATION
INDICATOR lamp flashes
(Number of times)
1
2
3
4
5
6
7
8
9
10
11
Specifications are subject to change without notice.
NTXAMT12, 18, 24, 30, 36A112AA
Wired remote controller
RF thermostat
Check code
P1
P2, P9
E6, E7
P4
P5
P6
EE
P8
E4
–
PB
Fb
– –
Beeper sounds/
OPERATION
INDICATOR lamp flashes
(Number of times)
Check code
E9
UP
U3, U4
UF
U2
U1, Ud
U5
U8
U6
U7
U9, UH Abnormality such as overvoltage or voltage shortage and abnormal and synchronous signal to main circuit/
Symptom
Intake sensor error
Pipe (Liquid or 2-phase pipe) sensor error
Indoor/outdoor unit communication error
Drain sensor error
Drain pump error
Freezing/Overheating safeguard operation
Communication error between indoor and outdoor units
Pipe temperature error
Remote controller signal receiving error
–
Fan motor error
Indoor unit control system error (memory error, etc.)
No corresponding
Symptom
Indoor/outdoor unit communication error (Transmitting error) (Outdoor unit)
Compressor overcurrent interruption
Open/short of outdoor unit thermistors
Compressor overcurrent interruption (When compressor locked)
Abnormal high discharging temperature/49C worked/ insufficient refrigerant
Abnormal high pressure (63H worked)/ Overheating safeguard operation
Abnormal temperature of heat sink
Outdoor unit fan protection stop
Compressor overcurrent interruption/Abnormal of power module
Abnormality of super heat due to low discharge temperature
Current sensor error
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