Introduction
In San Diego, your HVAC system works year-round — keeping you cool during our long summers and comfortable when temperatures dip in the evenings. Using an HVAC maintenance checklist is the best way to make sure your system doesn’t fail when you need it most.
At Carini Home Services our technicians follow a detailed preventative maintenance checklist during every visit. Here’s a behind-the-scenes look at what we check, why it matters, and how it keeps San Diego homes running efficiently.
Pre-Service Maintenance Checklist
Before maintenance begins, we:
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Confirm system performance with the homeowner
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Test operation so we can measure improvements after service
This step ensures we don’t just clean and tighten parts — we actually improve comfort and efficiency.
Air Flow Inspection
Good airflow keeps your system efficient and prevents breakdowns. We check:
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Air filter condition
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Blower wheel balance and cleanliness
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Blower compartment and mounts
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Electrical connections and insulation
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Motor amperage draw
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Air temperature differential (supply vs. return)
Restricted airflow can cause high energy bills and strain your equipment — two common issues in San Diego’s warm climate.
Indoor Coil
Moisture buildup can lead to mold and drain clogs. Our team ensures:
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Condensate drain and pump work properly
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Drain pan and coil surface are clean
This helps maintain healthy indoor air and prevents water damage.
Condenser (Outdoor Unit)
San Diego’s coastal air, dust, and debris make the condenser especially vulnerable. When providing an AC maintenance, we inspect:
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Electrical wiring and insulation
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Fan and compressor amperage draws
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Signs of refrigerant leaks at lines and connections
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Refrigerant levels and pressures
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Coil cleanliness for peak performance
Furnace Components
Even in mild San Diego winters, furnace maintenance, safety and performance matter. We check:
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Heat exchanger integrity
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Burner ignition and flames
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Gas pressure calibration
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Flame sensor and pressure switch function
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Vent motor and limit switch operation
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Wiring connections and insulation
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Full burner cleaning
Mini Split Systems
For ductless mini split maintenances, we:
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Clean washable filters
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Test condensate pumps
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Inspect flare fittings for leaks
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Clean blower wheel and coils
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Test thermostats and controllers
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Confirm louvers are operating correctly
Why Preventative Maintenance Matters
Routine HVAC maintenance:
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Improves energy efficiency and lowers utility bills
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Reduces the chance of costly emergency repairs
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Extends equipment life
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Improves indoor air quality for your family
Whether you’re in San Diego, El Cajon, Alpine, or Lakeside, regular maintenance helps you stay comfortable year-round.
FAQs About HVAC Maintenance in San Diego
How often should I service my HVAC system?
We recommend twice a year in San Diego — once in spring for your AC and once in fall for your furnace.
What’s included in a professional HVAC tune-up?
A complete inspection and cleaning of major components: airflow, coils, condenser, furnace parts, refrigerant levels, and safety controls.
Can HVAC maintenance lower my energy bills?
Yes. A clean, well-maintained system runs more efficiently, which reduces strain and energy use.
Do you offer maintenance plans?
Yes — Carini offers affordable maintenance plans with priority service, discounts, and scheduled reminders so you never miss a tune-up.
What happens if I skip maintenance?
Dust, leaks, and worn parts build up over time, leading to higher bills, poor comfort, and unexpected breakdowns — often during extreme weather.