HVAC TECHNICIANS | LICENSED ELECTRICIANS | CERTIFIED INSPECTORSHeating Tune-up

An Heating tune-up by our Certified HVAC technician includes a comprehensive inspection, cleaning, and minor adjustments to ensure your heating system runs efficiently.

Here’s what’s usually involved:

Here’s what a professional Heating System Tune-up usually includes. I kept it simple and grouped by what techs actually check, clean, test, and document.

Safety checks

• Carbon monoxide check at the unit and in supply air
• Gas leak inspection at shutoff valve, manifold, and fittings (for gas systems)
• Venting and flue inspection for rust, blockage, backdraft
• Safety switch and limit control tests
• Combustion air and clearances verified

Mechanical components

• Blower wheel, housing, and motor inspection and cleaning
• Fan belt condition and tension (if belt-driven)
• Heat exchanger visual check for cracks or corrosion
• Burners inspected and, if needed, cleaned and adjusted
• Ignition system tested (hot surface igniter or spark)

Electrical system

• Voltage and amperage measurements on motors and heaters
• Tighten electrical connections and inspect wiring insulation
• Test relays, contactors, capacitors, and sequencers
• Verify proper ground

Airflow and filtration

• Filter check and replacement if provided
• Static pressure reading to confirm proper airflow
• Return and supply plenums inspected for leaks or blockage
• Ductwork spot check for obvious damage or disconnections

Combustion and gas settings (gas furnaces)

• Combustion analysis for O2, CO, CO2, and efficiency
• Gas pressure set at manifold to manufacturer spec
• Flame sensor cleaned and flame quality verified

Heat pump specifics

• Defrost cycle test
• Reversing valve operation check
• Outdoor coil inspection and rinse if needed
• Measure temperature split and system pressures
• Check crankcase heater function in cold weather

Condensate and drains (high-efficiency units)

• Flush condensate trap and line
• Check condensate pump operation
• Inspect neutralizer media if installed

Thermostat and controls

• Calibrate thermostat and verify staging
• Verify fan modes and heat call operation
• Confirm smart thermostat settings and schedules if applicable

Cleaning tasks commonly performed

• Clean burners and flame sensor
• Clean or wash blower wheel if dirty
• Rinse outdoor coil on heat pumps
• Wipe igniter area and burner compartment
• Vacuum cabinet and return plenum area

Performance tests

• Temperature rise across heat exchanger checked against nameplate
• Measure supply and return temperatures
• Verify cycle time and proper shutdown
• Document overall system efficiency test results

What you should receive afterward

• Written checklist of all tests performed
• Measured readings: static pressure, temperature rise, amperage, gas pressure, and combustion numbers (when applicable)
• Notes on any parts nearing failure with repair options and pricing
• Filter size and recommended replacement schedule

What is usually not included

• Major repairs or part replacements
• Duct cleaning
• New thermostat installs
• Refrigerant charging for heat pumps unless a leak or performance issue is found

How often to schedule

• Once a year for furnaces, ideally in early fall
• Twice a year for heat pumps: once in spring and once in fall

Quick homeowner prep tips

• Replace or have a new filter ready
• Clear 3 feet around indoor and outdoor units
• Make a list of any noises, smells, or error codes you have noticed

A tune-up helps prevent breakdowns, improves energy efficiency, and extends the life of your AC unit.

Regular maintenance, usually once or twice a year, can save money on repairs and utility bills.