126
Troubleshooting
Self Diagnostic Table – W3 Board
Event
Power LED
Timer LED
Error Code
1. Room Sensor Open or Short
Blink 1 time
-
Blink E1
2. Pipe Water sensor Open or Short
Blink 2 times
-
Blink E2
3. Pipe Water Temperature poor
Blink 3 times
-
Blink E4
4. Pipe Water Temperature bad/fault
-
Blink 1 time
Blink E5
5. Water Pump Fault**
-
Blink 2 times
Blink E6
6. Hardware Error (tact switch pin Short/M3 or M4
Mode with valveless section)
-
Blink 6 times
Blink E8
7. Window Open activated*
Blink 6 times
-
-
8. Antifreeze mode activated*
Blink 7 times
-
-
9. Load Shedding activated*
Blink 8 times
-
-
*Only applicable for 4-pipes system.
**Applicable to FWK model only.
Self Diagnostic Table – W3DC Board
Event
Power LED
Timer LED
Error Code
1. Room Sensor Open or Short
Blink 1 time
-
Blink E1
2. Pipe Water sensor Open or Short
Blink 2 times
-
Blink E2
3. Pipe Water Temperature poor
Blink 3 times
-
Blink E4
4. Pipe Water Temperature bad/fault
-
Blink 1 time
Blink E5
5. Water Pump Fault
-
Blink 2 times
Blink E6
6. Window Open activated*
Blink Cool 6 times
-
-
7. Antifreeze mode activated*
Blink Cool 7 times
-
-
8. Load Shedding activated*
Blink Cool 8 times
-
-
9. Hardware Error
-
Blink 6 times
Blink E8
10. No feedback from indoor fan
Blink Cool 4 times
Blink E9
*Only applicable for 4-pipes system.
Summary of Contents for FUD Series
Page 2: ......
Page 4: ...Table of Contents ii...
Page 71: ...67 Fan Performance Chart...
Page 76: ...72 Fan Performance Chart...
Page 77: ...73 Fan Performance Chart...
Page 78: ...74 Fan Performance Chart...
Page 79: ...75 Fan Performance Chart...
Page 80: ...76 Fan Performance Chart...
Page 81: ...77 Fan Performance Chart...
Page 82: ...78 Fan Performance Chart...
Page 88: ...84 Fan Performance Chart...
Page 125: ...121 Wiring Diagrams Model FWC08 10 12G MSP Model FWC02 03 04 06 08 12G EC LSP MSP...
Page 126: ...122 Wiring Diagrams Model FUD20B Model FUD25B...
Page 127: ...123 Wiring Diagrams Model FUD30B...
Page 131: ......