1. First, find the "Mode" button on TCL's remote control.
2. Then aim the remote controller at the TCL air conditioner that needs remote control, and switch modes by pressing the "Mode" key continuously.
3. When the arrow on the remote controller indicates the word "heating", it means that the heating mode has been successfully switched. (It should be noted that switching to the heating mode requires waiting for the compressor to switch to the working mode, so the temperature may not change for a while. This is the method of TCL air conditioning heating.