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10-3. Error Mode Detected by LED on Outdoor P.C. Board
<SW800: LED display in bit 1, bit 2, bit 3 OFF>
• When multiple errors are detected, the latest error is displayed.
• When LED display is (Go on), there is the main cause of trouble on the objective part of control at CDB
side and the unit stops.
• When LED display is (Flash), there is the main cause of trouble on the objective part of control at IPDU
side and the unit stops.
• When case thermostat operates, the communication is interrupted on the serial circuit. If continuing the case
thermostat operation, a serial communication error occurs because serial sending to the indoor unit is inter-
rupted.
CDB side
IPDU side
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Item
TE sensor error
TD sensor error
TS sensor error
TO sensor error
Discharge temp. error
DC outdoor fan error
Communication error
between IPDU
(Abnormal stop)
High-pressure release
operation
EEPROM error
Communication error
between IPDU
(No abnormal stop)
G-Tr short-circuit
protection
Detection circuit error
Current sensor error
Phase missing detection
Comp. lock error
Comp. breakdown
Check code
Type A Type B
F06 18
F04 19
F06 18
F08 1B
P03 1E
P22 1A
L29 1C
P04
21
—
——
——
P26 14
P29 16
H03 17
H03 17
H02 1D
H01 1F
LED display
D800 D801 D802 D803
(Red) (Yellow) (Yellow) (Yellow)
: Go on : Go off : Flash (5Hz)
<<Check code>>
The check codes are classified into Type A and Type B according to the used remote controller. Be sure to
check the remote controller which you use.
Type A :
Neutral 2-cores type wired remote controller such as RBC-AMT21E, RBC-AS21E, and wireless remote control-
ler kit such as TCB-AX21U (W)-E
Type B :
Polarized 3-cores type wired remote controller such as RBC-SR1-PE, RBC-SR2-PE, and central control remote
controller such as RBC-CR64-PE