To get the best performance out of your mini split heat pump and keep it running efficiently year-round, we recommend that you have it serviced on a semi-annual basis. Professional maintenance services can help to reduce energy consumption costs by as much as 20%, while also helping to ensure that you remain comfortable throughout all four seasons.

Our mini split HVAC technicians will inspect your system and run a number of tests to check that everything is in proper working order. Additionally, we can clean the filters and inspect any other components as part of our maintenance service visits, which will help prolong the life of your equipment while also improving its performance. Investing in regular maintenance services for your mini split heat pump is essential to ensure that it runs as efficiently and reliably as possible. Contact our HVAC experts servicing Crystal Lake, McHenry and the Chicagoland suburbs today for more information.

Ductless Mini Split Tune-Up Checklist

  • Examine the refrigerant lines and the insulation of the refrigerant lines.
  • Make sure the outdoor unit is level and draining well
  • Inspect the outdoor unit coil for damage or impediments to airflow and clean accordingly
  • Inspect the indoor coil for dirt or debris and clean it if necessary
  • Examine the interior blower motor and blower wheel
  • Examine the outdoor unit blower.
  • Examine the condensate lines and or the condensate pump
  • Lubricate all of the mechanisms as necessary.
  • Verify that outdoor safety disconnect is in place
  • Test thermostat
  • Start-up procedure and test system

What to Expect with Harmonic Heating & Air Conditioning

The Collaboration Phase, We Will…

  1. Assign a project manager to thoroughly discuss all equipment requirements for your space.
  2. Present you with accessory and control options to complement your system.
  3. Collaborate with you to customize equipment to meet your specific needs and budget.

Before We Arrive, Please…

  1. Remove any valuables from the entry, hallways, and workspace to ensure their safety.
  2. Clear a safe path to the furnace and A/C to allow for removal and installation.
  3. Clear stairways, halls, entryways, and equipment closet.
  4. Clear space around the furnace to allow access and provide adequate workspace.
  5. Trim bushes, shrubs and trees that impede access to the A/C and related equipment.
  6. Secure any animals that may try to escape through open doors.

The Day of Your Project, We Will…

  1. Arrive on time to respect your busy schedule.
  2. Use tarps to protect your wood floors and carpets.
  3. Remove all old equipment, scrap metal, garbage, and boxes from new equipment.
  4. Be happy to address needs you may have to make your space more comfortable.

After the Project, We Will…

  1. Encourage you to protect your equipment with our Rock*Star Maintenance Program.
  2. Register all equipment warranties and process all applicable rebates noted on invoice.
  3. Follow up with you via phone to ensure your complete satisfaction.


  1. Look for signs of water on the floor or the system not heating and cooling properly.
  2. If something does not seem right.. please call us with any concerns right away.

Rock Star Ductless Heat Pump Maintenance Program

If your mini-split heat pump is fine today but you want more peace of mind, consider our Rock Star seasonal maintenance program. Either one or twice a year, we’ll schedule a complete system check to ensure your system is ready for the cooling or heating season.

Emergency Ductless Heat Pump Repairs

If you ductless heat pump has failed or just not working properly, we offer emergency heat pump service and repair. Request an appointment