HVAC Maintenance Checklist: What Professional Technicians Check During Service

Furnace Maintenance Checklist

Our furnace maintenance ensures your heating system operates safely, efficiently, and reliably throughout winter.

Furnace Information & Certification:

• Record model and serial number for customer profile
• Verify approved certification marks for Canadian gas and oil-fired equipment

Burner System Maintenance:

• Inspect burners for corrosion
• Verify burners are aligned correctly
• Clean flame sensor for reliable ignition

Furnace Drainage System:

• Purge pressure switch tubing
• Purge air through internal drain lines
• Purge air through external drain lines and fittings
• Purge air through the condensate trap
• Clean condensate trap as needed
• Verify no water in the blower compartment
• Ensure the floor grate is secure and clear of debris
• Purge underground drain lines with compressed air (if applicable)
• Check all clamps inside and outside the furnace for tightness
• Inspect condensate pump installation (if present)
• Verify the safety switch on the condensate pump
• Purge condensate pump line with CO2

Filter & Humidifier Maintenance:

• Inspect and replace filter as needed
• Inspect humidifier panel
• Replace humidifier panel as needed
• Open damper for heating season
• Clean humidifier components
• Set humidistat to optimal 35-40% humidity

Electrical System Checks:

• Ensure all connections are tight and secure
• Check for signs of corrosion
• Inspect for wear and tear
• Verify electrical compliance with safety standards

Heating Cycle Observations:

• Verify flame is blue without excessive orange or yellow
• Confirm flame is aligned and strong
• Ensure all burners are lit properly
• Check vent motor operation for quiet, normal function
• Assess blower motor for quiet, normal operation
• Verify humidifier is running and draining water correctly
• Confirm no leaks from the humidifier or furnace
• Check condensate pump operation (if equipped)
• Inspect for condensation leaking from venting
• Verify venting is properly sloped and supported

Safety & Compliance Checks:

• Perform CO flue test
• Measure supply temperature
• Verify gas pipe is properly bonded
• Note any non-compliances or deficiencies
• Confirm TSSA compliances:

• • Installation tag (for Unionville installations)

• • Venting compliance

• • Electrical compliance

• • Service and access area compliance

• • Clearance to combustibles

• • Sufficient combustion air

Common HVAC Maintenance Recommendations

Based on our extensive experience servicing HVAC systems in Markham, Stouffville, and surrounding areas, these are the most frequent recommendations our technicians make:

• Upgrade drain lines for better condensate removal
• Replace saddle valves with more reliable ball valves
• Install safety switches on condensate pumps
• Upgrade plastic waterlines for humidifiers to copper for increased durability
• Improve ventilation in enclosed equipment areas
• Add protection against power surges
• Install better filtration systems to improve indoor air quality

The Benefits of Regular HVAC Maintenance

Professional HVAC maintenance provides numerous benefits that save you money and increase comfort:

1. Extended Equipment Life: Regular maintenance can add 5-7 years to your system’s lifespan.
2. Lower Energy Bills: Well-maintained systems use up to 25% less energy.
3. Fewer Breakdowns: Preventative maintenance catches small issues before they become major problems.
4. Improved Air Quality: Clean components mean cleaner air in your home.
5. Maintained Warranty Coverage: Most manufacturers require proof of annual maintenance to keep warranties valid.
6. Enhanced Safety: Professional inspections identify potential safety hazards before they become dangerous.

Invest in HVAC Maintenance Now to Save Later

For just $149.95 per maintenance visit, you can protect your HVAC investment and avoid the high cost of emergency repairs or premature system replacement. Our maintenance visits typically take 60-90 minutes and include all the items on our comprehensive checklists above.

Our HVAC Maintenance Plan Offers Even Greater Value

Join our Maintenance Protection Plan for complete peace of mind:

• Scheduled spring and fall maintenance visits
• Priority emergency service
• Discounts on repairs and parts
• Extended warranty coverage
• No overtime charges for emergency service
• Detailed service documentation for warranty purposes

Schedule Your HVAC Maintenance Today →

Frequently Asked Questions About HVAC Maintenance