The answer to 'my mini split won't turn on' is that there could be several common causes, such as a tripped circuit breaker, a problem with the remote control, or an issue with the refrigerant level. Mini splits are ductless HVAC systems that have an outdoor compressor unit and an indoor air handling unit, connected by refrigerant lines. If the mini split isn't turning on, it's important to troubleshoot the issue to determine the root cause.
Some common symptoms of a mini split not turning on include no power to the indoor unit, the outdoor unit not running, or the remote control not responding. Potential solutions could include resetting the circuit breaker, replacing the remote control batteries, or checking the refrigerant level and recharging if necessary. However, if you're not comfortable working on HVAC systems, it's best to call a professional technician to diagnose and repair the issue.