Still waiting for them to sort out an issue with my hot water not heating up at the correct point. I've had an engineer visit, recommend replacing controller board. Wait for spare parts. Another subcontractor engineer turns up to the job, finds out he has to replace the controller board and says he hasn't got time and leaves (he has no idea what the job he is coming to involves!). Another engineer then comes, does the job - claims everything is fixed and leaves. I then realise he has reset all the system (he claimed he did not need to back up the settings as they were stored) - so my two zone system is now reset as a single zone with completely the wrong settings. No way of contacting him. Daikin can't help on the phone. Have to phone my original installer to put the correct settings back in.
Anyway, the new board made no difference - same problem.
Phone up to get engineer, wait weeks (no email confirmation or any acknowledgement). No response. Phone again - told they have escalated my issue. Still waiting. So this is now 2 months since that phone call and about 5 months since the original problem was reported to them. Hopeless! Not sure why I am paying for a non-existent extended warranty with them.
If I knew had bad this companies service department was, I would never have had one of their units.