What's your communication wire look like? Sounds VERY similar to an issue I had with my Daikin Unit
https://www.garagejournal.com/forum/threads/dual-zone-daikin-mini-split-problems.520453/
Directly with the remote
Yeah, so yesterday I set one to 70 and one to 76, and it took a while but it did actually figure itself out and one room really was 70, and the other was 76 and it stayed like that all day. I think the way I'm using them just isn't "correct"
Too soon to tell on the temp imbalance, but I know its not fixed entirely as earlier I had the office set to 71 and it was religiously maintaining 73 no matter the fan level, and bedroom was set to 76. Turned the bedroom down to 74 and lowered the fan speed (So the air would need to be colder to...
I tried to call Daikin and got the worst custom service in the world. They can't tell me ANYTHING unless I'm a licensed HVAC professional. They can't even confirm basic wiring or anything like that, and they had a big attitude. This will be the last product I'll ever purchase.