FAULT DIAGNOSIS
Wireless Controller
When there is infrared remote control operating signal, the signal receiver on indoor unit will make a <beep> for signal
acceptance confirmation.
Wired Controller
If there is any abnormal condition detected, wired controller will blink the error code.
Event
1.
Room Sensor Open or Short
2.
Pipe Water sensor Open or Short
3.
Pipe Water Temperature poor
4.
Pipe Water Temperature bad/fault
5.
Water Pump Fault
6.
Hardware Error (tact switch pin Short/M3 or M4
Mode with valveless section)
7.
Window Open activated*
8.
Antifreeze mode activated*
9.
Load Shedding activated*
* Only applicable for 4-pipes system
FAN COIL UNIT CONTROLLER BOARD SETTING
A) MODEL SELECTION
LIVE
L
HTR
INDICATOR LIGHTS
Power LED
Blink 1 time
Blink 2 times
Blink 3 times
-
-
-
Blink 6 times
Blink 7 times
Blink 8 times
(APPLICABLE FOR 4 PIPES UNITS ONLY)
CN_TW
CN_PGRM
H_SEN
C_SEN
ROOM
CN_WIR
1-12
Timer LED
-
-
-
Blink 1 time
Blink 2 times
Blink 6 times
-
-
-
CN_DRY
M1
M2
M3
M4
CN_STP
CN_DSP
Error Code
Blink E1
Blink E2
Blink E4
Blink E5
Blink E6
Blink E8
-
-
-
Model M3
Model M4