Try this.
Read it all though.
- Ensure the AC units are powered on but NOT running (i.e. standby)
- There are specific button presses to do on the remotes,
- You’ll need function 30 or 31 (maybe do both as 30 is for cooling, 31 for heating)
- The calculation is BIZARRE and thus pay attention to the value options, as they negate
*Corrected temp. = Temp. of the room temp. sensor - Correction temp. value*
(so if you use value 03, which is -1C, you will be doing temp - -1 (i.e. adding one)
- The guide states:
*After completing the function setting, be sure to disconnect the power supply and then reconnect it.*
*CAUTION*
*After disconnecting the power supply, wait 30 seconds or more before reconnecting it. The function*
*setting will not become active unless the power supply is disconnected and then reconnected.*
The email I got from the tech team says “turn it off for 2 minutes before reconnecting” (which may be why my initial test didn’t seem to work)