What Does a Professional AC Service Include? A Complete Checklist

A professional AC tune-up is more comprehensive than many homeowners realize. Understanding what's included helps you appreciate the value and know what to expect when a technician services your system.

Outdoor Unit (Condenser) Service

Cleaning and Inspection

Coil Cleaning:

• Inspect condenser coils for dirt and debris
• Apply appropriate cleaning solution
• Rinse coils thoroughly
• Straighten bent fins if needed

Component Inspection:

• Check compressor operation and amperage
• Inspect fan blade for damage or balance
• Examine fan motor condition
• Check refrigerant lines for damage

Electrical Checks

Connections and Components:

• Tighten all electrical connections
• Test capacitor(s) for proper function
• Check contactor condition
• Verify proper voltage and amperage

System Area

Exterior Environment:

• Clear debris from around unit
• Verify adequate clearance
• Check concrete pad condition
• Ensure proper drainage

Indoor Unit (Air Handler) Service

Evaporator Coil

Coil Inspection:

• Check for dirt and debris
• Inspect for mold or mildew
• Clean if accessible
• Verify proper airflow

Blower Assembly

Blower Maintenance:

• Inspect blower wheel condition
• Check for dirt buildup
• Verify motor operation
• Test amperage draw

Drain System

Condensate Management:

• Clear condensate drain line
• Check drain pan condition
• Verify proper drainage
• Flush with cleaning solution

Air Filter

Filter Service:

• Check current filter condition
• Replace or clean as needed
• Verify correct filter size
• Discuss optimal replacement schedule

System Controls

Thermostat

Thermostat Testing:

• Verify calibration accuracy
• Check programming function
• Test temperature differential
• Evaluate placement

Safety Controls

Safety Verification:

• Test high-pressure switch
• Check low-pressure switch
• Verify overflow switch operation
• Test all safety circuits

Refrigerant System

Refrigerant Check

Charge Verification:

• Measure operating pressures
• Calculate superheat and subcooling
• Compare to manufacturer specifications
• Identify potential leaks

Leak Detection

If Low Charge Found:

• Perform leak detection
• Identify leak locations
• Recommend repair options
• Not a normal maintenance item (additional charge applies)

Performance Testing

Temperature Differential

Cooling Capacity:

• Measure supply air temperature
• Measure return air temperature
• Calculate temperature drop
• Should be 15-20°F across coil

Airflow Verification

System Airflow:

• Check for adequate airflow
• Identify restrictions
• Verify duct connections
• Note any ductwork issues

Documentation and Reporting

Service Report

What You Should Receive:

• All readings and measurements documented
• Any issues identified
• Recommendations for repairs
• Suggested improvements
• Filter size and type notation

Before and After

Good Companies Provide:

• Current system status
• Work performed
• Conditions found
• Next service recommendations

What's NOT Included

Additional Services (Extra Charge)

Repairs:

• Parts replacement
• Refrigerant addition
• Electrical repairs
• Component replacement

Major Services:

• Duct cleaning
• Deep coil cleaning
• Refrigerant leak repair
• Major electrical work

Time Required

Typical Service Duration

• Basic tune-up: 45-60 minutes
• Comprehensive service: 60-90 minutes
• Additional time for issues found

Factors Affecting Time

• System condition
• Accessibility of components
• Problems discovered
• Equipment age and type

Frequency Recommendations

Standard Recommendation

• Annual service minimum
• Spring timing for AC systems
• Before heavy usage begins

Consider Twice Yearly If:

• System runs year-round
• Older equipment (10+ years)
• Previous problems
• Allergy or health concerns

Quality Indicators

Signs of Thorough Service

Look for technicians who:

• Work systematically through checklist
• Take measurements and document
• Explain findings clearly
• Offer honest recommendations
• Don't pressure for unnecessary services

Red Flags

Be cautious if technician:

• Rushes through service
• Doesn't check both indoor and outdoor units
• Can't show documentation of work
• Pressures for immediate expensive repairs

Value of Professional Service

Benefits Received

• 10-20% efficiency improvement
• Reduced breakdown risk
• Extended system life
• Warranty protection
• Peace of mind

Cost vs. Value

• Service cost: $100-250
• Potential energy savings: $100-300/year
• Avoided repair costs: Priceless
• Extended system life: Thousands saved

Schedule Your AC Service

Intelligent Design provides comprehensive AC service following manufacturer recommendations. Our NATE-certified technicians perform thorough inspections and provide detailed reports.

Call (520) 333-2665 to schedule your tune-up or learn about our maintenance plans. We've been maintaining Tucson's AC systems since 1979.