Maintaining Your Ductless Mini Split System: Why It’s Important 

June 12, 2024 by SMHC

As a homeowner, you want to ensure that your HVAC system is delivering the comfort you expect efficiently and effectively. One type of system that requires proper maintenance is the ductless mini split. Just like your car and other household appliances, a ductless mini split system needs to be serviced and maintained to help it perform optimally. Here at Simcoe Muskoka Home Comfort (SMHC), we recommend annual clean-and-check service by an HVAC professional to keep your ductless mini split in top shape. 

Cleaning Your Ductless Mini Split: A Guide for Homeowners 

Learning the basics of how to clean a ductless mini split system is something most homeowners can easily do. Here’s a quick guide on how to clean your ductless mini split: 

  • Clean the unit cabinet inside your home regularly with a dry cloth or small vacuum to prevent the accumulation of dirt and dust. 
  • Inspect and clean the indoor unit’s air filter every 4-6 weeks, following the manufacturer’s recommendations. Turn off the system before opening the cabinet for safety. 
  • Clean the dust and dirt from inside the cabinet with a small vacuum or dry cloth when the power is turned off. 
  • Inspect the outdoor unit periodically and remove accumulated leaves and other debris from the base of the cabinet. Trim nearby shrubs and check the coil for dirt and debris between the delicate fins. 
  • Clean the coils on the outdoor unit with a garden hose when the power is turned off, but avoid using a high-pressure nozzle. Make sure the unit is completely dry before turning the system back on. 
  • If you are not comfortable performing any of these tasks, contact SMHC for ductless mini split repairs or maintenance.

Thorough Cleaning by an HVAC Technician 

For a more thorough ductless mini split cleaning, call an experienced HVAC technician. Here’s what they might do: 

  • Inspect, clean or replace the air filters, depending on the type of filter used by your specific system. 
  • Clean removable parts, the fan and evaporator coil inside the indoor unit. Clean the indoor coil with a commercially available coil cleaner and light rinse. Clean the condensing unit and outdoor coil with a coil cleaning solution and rinse. 
  • Apply a fungistat or bacteriostat to discourage buildup on the coils. Inspect all other system components, including the mounting hardware, electrical connections, and refrigerant lines. Check for a refrigerant leak if the system is low on charge or showing an icy buildup on the coils. 

Ductless mini split systems are highly advanced technology systems that some assume require more work to maintain. However, this is not the case. Ductless mini splits don’t require any more maintenance than traditional HVAC systems. By following the tips mentioned above and scheduling annual clean-and-check service, you can keep your ductless mini split system running smoothly. Contact SMHC for all your ductless mini split needs.

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Simcoe Muskoka Home Comfort

HVAC Services
Simcoe Muskoka Home Comfort (SMHC) is a family-owned HVAC service provider serving Orillia and surrounding areas. We offer installation, maintenance, and 24/7 emergency services for air conditioning, furnaces, boilers, and water heaters. Our team specializes in both residential and commercial HVAC solutions, ensuring energy efficiency and year-round comfort.
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