Daikin FTYN25LV1B - LED INDICATOR LIGHTS: OPERATION AND FAULTS; Fault Code Reference

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LED Indicator Lights: Normal Operation And Fault Conditions For Heat Pump Unit
Note: The unit will not detect sensor missing when the compressor is ON.
COOL/HEAT
(GREEN/RED)
Normal Operation/Fault Indication Action Error Code
Green
Cool mode - -
Red
Heat mode - -
Red
Auto mode in Heating operation - -
Green
Auto mode in Cooling operation - -
Timer on - -
Sleep mode on - -
Fan mode on - -
Dry mode on - -
1 time
Room air sensor contact
Loose/Short
Call your dealer Blink E1
3 times
Outdoor coil sensor open Call your dealer Blink E3
2 times
Indoor coil sensor open Call your dealer Blink E2
1 time
Compressor overload/ Indoor coil sensor short/
outdoor coil sensor short
Call your dealer Blink E4
Red
Defrost operation - -
3 times
Low Refrigerant Charge/Gas Leak/Outdoor
Abnormal
Call your dealer 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
5 times
EEPROM error Call your dealer Blink EE
ON
ON or OFF
Blinking
Blink N times
Blink continuously
ON
OFF
12N 12N
500ms 500ms
3 seconds
ON
OFF
500ms 500ms
1 EN-5WMJ-1211(0)Daikin.indd 141 EN-5WMJ-1211(0)Daikin.indd 14 1/12/12 1:44:39 PM1/12/12 1:44:39 PM