Seasonal Maintenance Tune-Up: the full procedure

Defines the consistent precision tune-up performed each season so every maintenance visit delivers the same documented value.

• Applies to: HVAC technician performing a maintenance tune-up.
• Frequency: Seasonal — cooling in spring, heating in fall (typically twice yearly).
• Scope: Covers the standardized inspection, cleaning, and performance-check workflow. Combustion analysis, refrigerant charge verification, and electrical safety testing defer to a certified technician, EPA/refrigerant rules, applicable codes, and the safety plan.

What you need

• ACCA-based maintenance checklist
• Temperature probe / instruments (per safety plan)
• Coil cleaner and fin tools
• Replacement filters
• Camera/field app
• Vacuum and condensate cleaning supplies

The procedure, step by step

1. Open with a baseline — Run the system, confirm thermostat operation, and record a starting temperature split or performance baseline.
2. Inspect and replace filter — Check and replace or clean the filter and note the correct size and MERV for the customer’s record.
3. Clean coils and condensate — Clean the condenser/evaporator coil as accessible and clear the condensate drain to prevent water damage and capacity loss.
4. Inspect mechanical components — Inspect the blower, motor, belts, and electrical connections visually; regulated electrical testing follows the certified path and safety plan.
5. Defer regulated checks — Combustion analysis and refrigerant charge verification are performed only by a certified technician under EPA rules, codes, and the safety plan.
6. Verify performance — Re-measure the temperature split or performance indicator after service and compare to the baseline to confirm improvement.
7. Document and recommend — Record all readings and photos, flag any developing issues, and present any recommended repairs as options — never surprise charges.
8. Schedule the next visit — Book or confirm the next seasonal visit and update the membership record before leaving.

Quality check before you finish

• Starting and ending performance readings recorded
• Filter checked/replaced with size and MERV noted
• Coils and condensate drain cleaned
• Standardized checklist fully completed
• Regulated checks deferred to the certified path
• Findings documented with photos; recommendations offered as options
• Next seasonal visit scheduled

This is a free, source-anchored standard operating procedure (SOP) you can print and hand to staff. It documents the work sequence for a HVAC business — not safety or regulatory rulings, which defer to the cited authorities, the applicable code, and your own health-and-safety plan. Open the tool above to print it, toggle ink-saver, or (with a free ToolFluency Business account) edit it to match your own workflow.

Sources

• ACCA (Standard 4 / QM) (acca.org)
• Energy Star (energystar.gov)
• ASHRAE (ashrae.org)