No.
1
Normal
2
Discharge (TD) sensor error
3
Heat exchanger (TE) sensor error
4
Heat exchanger (TL) sensor error
5
Outside air temperature (TO) sensor error
6
Suction (TS) sensor error
7
Heat sink (TH) sensor error
8
Outdoor temperature sensor (TE/TS) connection error
9
Outdoor EEPROM error
10
Compressor lock
11
Compressor lock
12
Current detection circuit error
13
Thermostat for compressor activated
14
Model data not set (on the service P.C. board)
15
MCU-MCU communication error
16
Discharge temperature error
17
Abnormal power (open phase detected or abnormal voltage)
18
Heat sink overheat
19
Gas leak detected
20
4-way valve reverse error
21
High pressure release operation
22
Outdoor fan motor error
23
Compressor driver short-circuit protection
24
Position detection circuit error in one-line display
* The LEDs and
DIP switches
are located on
the lower left of
the P.C. board
of the outdoor
unit.
SW804
Cause
SW801
SW800
LED
D800
D801
D802
D803
D804
D805
Display mode 1
D800
D801
D802
D803
SW803
SW802
14
Display mode 2
D804
D800
D801
D802
(
:OFF
:ON
Enlarged view of LEDs
D800
D801
D802
D803
D804
D805
D803
D804
:Flashing)