Annual mini-split maintenance to keep your system at peak.
Mini-split systems require less maintenance than ducted systems, but they do require it. Annual cleaning of filters, coils, and drain lines prevents the most common failures and keeps your system running at rated efficiency.
Mini-split maintenance in Los Angeles — what gets dirty and why it matters
The indoor heads of a mini-split are recirculating room air constantly. Over time, filters cake with dust, the evaporator coil accumulates biofilm, and the drain line collects mold. The result: reduced airflow, musty odors, ice on the coil, and eventually a fault shutdown. HVAC in LA provides a full deep-clean service that restores factory performance.
Our maintenance visits cover all heads in multi-zone systems, not just the primary unit.
What's included in mini-split maintenance
- Filter wash and dry — reusable filters cleaned and reinstalled
- Evaporator coil cleaning — foaming coil cleaner and flush
- Blower wheel cleaning — where mold accumulates in humid climates
- Drain pan and line flush — prevents water leaks and musty odors
- Refrigerant pressure check — confirm proper charge
- Outdoor unit inspection — coil, fan, refrigerant connections
- Control and communication test — confirm all zones respond correctly
Our Mini-Split Maintenance process
What to expect from first call to final commissioning.
Schedule annual service
Best before summer or before winter. Multi-zone systems need about 30 minutes per head.
Deep clean each head
Filter, coil, blower wheel and drain for every indoor unit. We protect the wall and floor during service.
Outdoor unit check
Inspect refrigerant circuit, fan, coil condition, and electrical connections at the outdoor unit.
System test and report
Confirm correct operation of all zones. Provide written service record for warranty purposes.
Every rebate dollar, handled for you
HVAC in LA files the paperwork for every program you qualify for. Most projects stack at least two of these.
Mini-Split Maintenance FAQs
How often should I service a mini-split in LA?
Can I clean the filters myself?
My mini-split smells musty — is that normal?
Do you service all heads in a multi-zone system?
Ready to get started?
Free in-home consultation with any new or replacement HVAC system, or any service / repair over $200. We answer the phone 24/7.