Here are some common problems with split system air conditioners that might require repair:

Air conditioner not cooling effectively: This could be due to a variety of issues, such as a dirty or blocked air filter, low refrigerant levels due to a leak, a problem with the thermostat, or a faulty compressor or evaporator.

Air conditioner not turning on: This could be caused by a tripped circuit breaker or blown fuse, a problem with the thermostat, or issues with the unit’s wiring or control board.

Air conditioner making unusual noises: This might be due to problems with the fan motor or blower, a failing compressor, or debris in the system.

Air conditioner leaking water: This could be due to a blocked condensate drain line, a problem with the condensate pump (if one is used), or issues with the evaporator coil.

Air conditioner constantly running: This could be due to a problem with the thermostat, a refrigerant leak leading to low refrigerant levels, or a system that is too small for the space it’s cooling.

Repairing these issues generally involves identifying the specific problem, then fixing or replacing the faulty component. As with other appliances, this type of repair work can involve dealing with electrical components and refrigerants, so it’s often best to hire a professional HVAC technician. Some issues, such as replacing a dirty air filter or resetting a tripped circuit breaker, may be suitable for DIY repair.

Regular maintenance can also help to prevent problems with a split system air conditioner. This might include tasks like regularly replacing or cleaning the air filter, keeping the outdoor unit clear of debris, and scheduling regular professional maintenance checks to keep the system running efficiently. These checks can help to identify potential problems early and extend the lifespan of the system.