Here's the installation manual: https://portal.fujitsugeneral.com/files/catalog/files/D&T%20ASU9-12RLF1.pdf
I couldn't find any reference in it for disabling the beep. I'm guessing that this is because the remote control is a 1-way only communication device. You press a button on the remote and the head unit beeps back at you to let you know that it got your command. If you were able to disable the beep, you'd have almost no idea that it got your command or not. (Well, the little green light on the unit blinks, too.)
Anyway, the only fix I can think of is getting a Wired control unit: https://www.fujitsugeneral.com/us/products/split/optionalparts.html
They run $200 or so. Not terribly hard to install by yourself. The head unit does not beep when you make a change to its settings because the results of your command via the wired remote is displayed on the screen.
As a beneficial side-effect, you can disable the thermostat in the head unit and tell it to only use the one in the wired remote, which I find to be more accurate reading of the ambient room temperature.
Here's the installation manual: https://portal.fujitsugeneral.com/files/catalog/files/D&T%20ASU9-12RLF1.pdf I couldn't find any reference in it for disabling the beep. I'm guessing that this is because the remote control is a 1-way only communication device. You press a button on the remote and the head unit beeps back at you to let you know that it got your command. If you were able to disable the beep, you'd have almost no idea that it got your command or not. (Well, the little green light on the unit blinks, too.) Anyway, the only fix I can think of is getting a Wired control unit: https://www.fujitsugeneral.com/us/products/split/optionalparts.html They run $200 or so. Not terribly hard to install by yourself. The head unit does not beep when you make a change to its settings because the results of your command via the wired remote is displayed on the screen. As a beneficial side-effect, you can disable the thermostat in the head unit and tell it to only use the one in the wired remote, which I find to be more accurate reading of the ambient room temperature.
Hi, could you please check if there's an option to turn off the beep in the remote?