
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Troubleshooting
Troubleshooting
Model
Board
FWW03/04/05/06L
50WJW
FWKE05/08/11E(H)
W3DC
FWC03/04/06/07/09/12/14/16C
W2
FWC03/04/06/08/10/12/14/16/18/20G
No Controller
FWC02/03/04/06/08/10/12G EC
No Controller
FUD20/25/30B
No Controller
Self Diagnostic Table - 50WJW Board
COOL/HEAT
(GREEN/RED)
Normal Operation/Fault Indication
Action
Error Code
Green
Cool mode
-
-
Red
Heat mode
-
-
Timer on
-
-
Sleep mode on
-
-
Fan mode on
-
-
Dry mode on
-
-
1 time
Room air sensor contact
Loose/Short
Call your dealer
Blink E1
2 times
Indoor coil sensor open/short
Call your dealer
Blink E2
3 times
Pipe water temperature poor
-
Blink E4
1 time
Pipe water temperature bad
-
Blink E5
6 times
Hardware error (tact switch pin short)
Call your dealer
Blink E8
4 times
No feedback from indoor fan
Call your dealer
Blink E9
ON
ON or OFF
Blinking
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...
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