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Trouble shooting
When the malfunction occures, the LED on the outdoor unit PCB will display the
failure code directly as follows:
Failure code Failure section
1
defrosting temp. sensor TE circuit
2
outdoor ambient temp. sensor TA circuit
3
compressor suction temp. sensor TS circuit
4
compressor discharging temp. sensor TD circuit
5
mid-condenser temp. sensor TC circuit
6
AC current is overcurrent
7
mutual inductance circuit
8
no meaning
9
IPM protection circuit
10
inner malfunction of control board
11
protection action of compressor discharging temp. (TD)
12
no meaning
13
pressure switch acts
14
no meaning
15
no meaning
16
protection action of compressor suction temp. (TS)
17
no meaning
18
no meaning
19
low frequency, compressor discharging temp. protection action (TD)
20
inner malfunction of control board
21
inner malfunction of control board
22
communication malfunction between indoor and outdoor
23
inner malfunction of control board
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Table of Contents
Troubleshooting
