Error code
live-operation-lamp-5-second-blink Live operation-lamp five-second blink
How it shows on the unit Operation lamp blinking for 5 seconds when heating is selected
Applies to 3 models
FVXM25FV1B9, FVXM35FV1B9, FVXM50FV1B9
What this means
Heating was selected on a cooling-only configuration, or the remote-control heat-pump/cooling-only setting does not match the outdoor unit.
What you can check yourself
- Check whether the outdoor unit is cooling-only or a heat pump and verify the remote-control H/P or C/O setting; contact the dealer if the setting cannot be confirmed.
Still not resolved? Contact a qualified installer or servicer.
See the official Daikin manualA deep link to the manufacturer's own PDF for full technical detail. We link to manuals, we never host them.