Daikin AC temperature randomly changes after set by Home Assistant

Configuration
1

I have 3 Daikin “mini-split” units in my condo. The model numbers for 2 of the units are FTXS12LVJU and the 3rd unit is FTXS18LVJU. I have connected all units to my wi-fi using the BRP072A43 adapter.

Recently between my wife and I have noticed that the temperature for all the units to randomly jump from whatever temperature my wife or I have set it at, to something completely different. For example, I set the temperature for 60° F in the “Heat” mode and within about 1 minute, the set temperature will change to 68° F.

If I use the official Daikin App, Comfort Control app, this doesn’t happen. I set a unit at 60° F and it stayed at 60° F.

I checked with the manual and 60° F is within the capability of the “Heat” mode of the units.

I have never noticed this behavior before with HA and the Daikin units. I’ve been using HA with the Daikin units for over 2 years.

We I first tested out HA as I was transitioning from SmartThings the Daikin integration automatically detected all my BRP072A43 adapters as stated in the HA Daikin documentation. So I’m not missing any API key or password for the adapters.

Here is a screenshot of one of the units’ device page:

image
image672×507 19.5 KB

I have noticed the “NOTSUPPORT”.

The HA Daikin documentation lists supported hardware US hardware as BRP069A43. I don’t know if there is any large difference between BRP069A43 & BRP072A43, which are the adapters I own.

Again, this temperature jumping issue appears to be new and something I have not noticed in the past.

Any help on this issue would be appreciated.

Thanks in advance.

2

Have you checked the logbook to see if there is any context as to what changed it?

Screenshot 2022-04-13 at 11-49-44 Logbook – Home Assistant
Screenshot 2022-04-13 at 11-49-44 Logbook – Home Assistant1108×262 10.3 KB

Also I think you can ignore the “NOTSUPPORT” message. I have two Daikin units, one has that message the other does not, they both function as expected:

BRP072A42
Screenshot 2022-04-13 at 11-52-04 Configuration – Home Assistant

BRP15B61
Screenshot 2022-04-13 at 11-52-15 Configuration – Home Assistant

3

The logbook doesn’t track the temperature set.

4

Good point. It does track automations though. If one of them is adjusting the temperature.

5

No automations at play.

6

Open an issue here:

7

I will later tonight.

Heres a little clip of it in action:

8

FYI

Screenshot 2022-04-13 at 13-24-35 Daikin AC temperature randomly changes after set by Home Assistant - Configuration - Home Assistant Community
Screenshot 2022-04-13 at 13-24-35 Daikin AC temperature randomly changes after set by Home Assistant - Configuration - Home Assistant Community853×191 5.06 KB

9

Sorry about that. Re-uploaded it and allowed embedding.

10

Add this to your configuration.yaml file:

logger:
  default: warning
  logs:
    homeassistant.components.daikin: debug

Restart, and try setting the temperature again. Wait for it to fail/revert and paste the system debug log here.

You will need this log for your issue too.

11

I put in that code, restarted and tweaked the temperature and I’m not seeing anything in the logs.

12

Then the integration isn’t doing anything.

13

Yea that sounds like a bug for sure.

I also tried with another snippet of code in the configuration.yaml

logger:
  default: info
  logs:
    homeassistant.components.daikin: notset
    pydaikin: notset

I found this bit of code from @fredrike in another thread regarding Daikin AC’s.

Restarted, reproduced temperature change issue, checked logs, nothing at all.

14

I’ve seen the issue. The thing is that “it worked before”, we need to know the last version when it worked as expected so we can trace the changes.

15

Updated issue with my best guess as when it was working correctly, Release 2022.3.8

16

I have a similar issue with my Daikin‘s all of a sudden they’re normally set at 75 Fahrenheit if I try to change it it shows to be changed for about 90 seconds or so then It goes back to the 75°F. I can change it manually with the remote control and once I do so if I try to change it off of that number it keeps going back to whatever I set it at with the remote control. The other functions of the Daikin integration seem to work fine just temperature adjustment is where I see the problem.

17

Experiencing same issue after installing a new adapter mid February 2022, so at least 2022.2.x I think.

18

I’ve updated to 2022.4.6 which contains a fix for this issue. I’m still experiencing issues.

19

Ok, did some digging and this is what I’ve found. I’m currently running 2022.4.6, my unit has a BRP072A43 module (fw 2.9.0). Daikin Comfort App 2.0.

Below is a table to show the temperature in Fahrenheit being set in HA, temperature sent through the integration, temperature sent when using the app configured in Fahrenheit, when it succeeds changing the temperature in the unit.

F temp  stemp ha    stemp app   changed temp in unit
68      20          20          yes 
69      20.6        20.5        no
70      21.1        21          no
71      21.7        21.5        no
72      22.2        22          no
73      22.8        23          no
74      23.3        23.5        no
75      23.9        24          no
76      24.4        24.5        no
77      25          25          yes
78      25.6        25.5        no

@fredrike Should I create a new issue in Github for this?

20

So the fix for this issue didn’t solve the issue?

I think you should create a new issue and tag @vanackej, it is he who introduced the issue so he should fix it.

Edit: It seems like you need to send decimal .5, something like this should fix it: rounding - Round to 5 (or other number) in Python - Stack Overflow

Or, start using Celsius (from the great Swedish inventor Anders Celsius) like the rest of the world :wink: