DAIKIN F809

Alarm Logic:
If any of the following conditions is apply
1. E107 is generated twice due to EV opening error (DECOS-3g and earlier settings)
2. E809 is generated twice due to EV opening error (DECOS-3h and later settings)


Possible Causes:
1. Refrigeration system restriction : Drier / Filter
  • Refrigerant shortage
  • ISV malfunction / Restriction at ESV outlet line capillary / Mounting position of discharge gas temperature sensor
Trouble Shooting:
Refer to alarm diagnosis 035 (page 5-24) and perform repairs as needed 

Controller Action:
F809 Unit stopped

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