Troubleshooting - Samsung RD040MHXCA Series Installation Manual

C I
OMPLETING THE NSTALLATION

Troubleshooting

The table below give indication about self diagnostic routine. Some of error code requires activities exclusively
for Authorized Service Center.
If an error occurs during the operation, it is displayed on the outdoor unit PCB LED, both MAIN PCB and INVERTER PCB.
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34

38
E-
FJM RD040MHXCA_IM_32073_E_4.06.10.indd 38
Outdoor Unit
LED Display
Yellow Green Red
  
  
 
 
 
 


 

 
 
 
 
 
  
 
 
 
 
 
 
 
  


 
 
  
Off Blink On

Main 7-seg
display
Error Number
-
Power off/VDD NG
- Power ON reset(1sec)
- Normal Operation
The number of indoor units error
Indoor and Outdoor Unit communication error
Communication error between outdoor unit Inv and Main
micom(1minute)
Outdoor temp sensor error(Short/Open)
Cond temp sensor error(Short/Open)
[Self-diagnosis] Cond sensor detachment
Discharge temp sensor error(Short/Open)
[Self-diagnosis] Discharge sensor detachment
Double pipe sensor error
OLP sensor error
Over-load prevention control
High pressure protection control
Discharge over temperature
ESC EEV Open
Heat Operation Prohibit 30°C (86°F )
Cool Operation Prohibit -10°C (14°F )
Fan_1 error
Fan_2 error
Detection error of misconnected communication cable
between indoor and outdoor unit
Comp Starting error
All electric current control
OLP temperature control compressor stop
IPM Over Current(O.C)
Comp limit error
DC-Link voltage under/over error
Comp rotation error
Current sensor error
DC-Link voltage sensor error
OTP error
AC Line Zero Cross Signal out
GAS Leak error(Dual/Single)
Meaning
2010-4-6 10:22:47