Air Conditioning Tune-Up

AC Maintenance and Repair Services You wouldn’t drive your car 100,000 miles without changing the oil. The same logic holds true for your home comfort system. Regular preventative maintenance is the best way to ensure trouble-free operation and peak performance. Pre-season maintenance is also important. It can help to avoid a system failure in severe hot or cold weather when you need it most, and it can also keep your energy bill from getting out of control.

AC maintenance services are very important in the Phoenix heat. The equipment installed on your home takes a lot of abuse from the long run hours in the summer months and the extreme dust during our monsoon season. A biannual AC and heating tune-up will take care of your equipment just like you taking care of your car. Regular tune-ups will extend the life of your air conditioning equipment, lower cooling bills, prevent break downs, and keep any ongoing manufacturer’s warranty active.

All Wolff Mechanical tune-ups are performed by our team of NATE certified technicians.

We offer 3 types of tune-ups:

  • APS Super tune-ups
  • A 16 point tune-up that qualifies for SRP and APS discounts when available
  • A maintenance agreement is a comprehensive 32 point tune-up. Maintenance agreements are purchased by the year and tune-ups are performed in spring and fall. They include reminder calls, priority service 365 days per year, 15% discount on repairs, outdoor coil cleaning, condensate vacuum, and 5% of the purchase of any new equipment. Call our office to sign up for our maintenance agreement program
16 Point AC Tune-Up
  • Check Thermostat Operations
  • Clean Electronic Filter Or Replace (Customer Supplied)
  • Check System Temperature Split
  • Inspect Fused Disconnect
  • Inspect Wiring/Tighten Electrical Connections
  • Inspect Contractors, Relays, and Pressure Controls
  • Inspect Electrical Safety Circuits
  • Check Voltage and Amperage to all motors
  • Inspect Indoor Blower & Motor For Dirt Build-Up
  • Inspect Bearings & Lubricate All Moving Parts (As Required)
  • Inspect & Clean Condensate Drain
  • Inspect Outdoor Coil & Advise Customer
  • Inspect Duct Seal At Unit & Secure Panels
  • Explain And Document All Necessary Repairs
  • Run and Test the System
  • Additional Purchase Options (Not Included in 16 Point Tune-Up)
  • Vacuum Out And Clear Condensate Line (good after dust storm)
  • Coil Cleaning (good after dust storm)
  • Replace Filters (Filters must be ordered one week in advance through the office)

When Should I Do Maintenance?

The old adage is true: an ounce of prevention is worth a pound of cure. Below you’ll find our Preventative Maintenance Checklist, which is our proven method to keep your system in the pink and your home in constant comfort.

  • For a system that heats and cools: perform maintenance in the spring and fall
  • For cooling only: perform maintenance at least once a year, before the cooling season
  • For heating only: perform maintenance at least once a year, before the heating season

Preventative Maintenance Checklist

Many dealers provide priority service for their customers who have an annual maintenance or service agreement. Bi-annual preventative maintenance will ensure that your system runs as efficiently as possible. Your local dealer will perform the following tasks, depending on the unit:

Outdoor Units


  • Inspect unit for proper refrigerant level and adjust if necessary
  • Clean dirt, leaves and debris from inside cabinet
  • Inspect base pan for restricted drain openings—remove obstructions as necessary
  • Inspect coil and cabinet—clean as needed
  • Inspect fan motor and fan blades for wear and damage—on older models lubricate as needed
  • Inspect control box, associated controls/accessories, wiring and connections. Controls may include contactors, relays, circuit boards, capacitors, sump heat and other accessories. All control box and electrical parts should be checked for wear or damage
  • Inspect compressor and associated tubing for damage
Indoor Units


  • Inspect and clean blower assembly (includes blower housing, blower wheel and motor)
  • On older models, lubricate motor and inspect and replace fan belt if needed
  • Check combustion blower housing for lint and debris and clean as necessary
  • Inspect evaporator coil, drain pan and condensate drain lines. Clean as needed
  • Inspect for gas leaks in gas furnaces Inspect burner assembly—clean and adjust as needed
  • Inspect ignition system and safety controls—clean and adjust as needed
  • Inspect heat exchanger or heating elements
  • Inspect flue system—check for proper attachment to the furnace, any dislocated sections, and for signs of corrosion. Replace if necessary.
  • Inspect control box, associated controls, wiring and connections Clean or replace air filters
  • Inspect conditioned airflow system (ductwork)—check for leaks
While Your System Is Operating


  • Monitor system starting characteristics and capabilities
  • Listen for abnormal noise
  • Search for source of unusual orders
  • Monitor air conditioning and heat pump systems for correct refrigerant charge
  • Measure outdoor dry bulb temperature
  • Measure indoor dry and wet bulb temperature
  • Measure high and low side system pressures
  • Monitor gas furnace for correct line and manifold gas pressure—make adjustments as needed
  • Measure temperature rise and adjust airflow as needed
  • Check vent system for proper operation
  • Monitor system for correct line and load volts/amps
  • Monitor system operation per manufacturer’s specifications
  • Provide system operation report and recommend repairs or replacement as necessary

NOTE: Trane recommends all maintenance and service work be performed by a professional air conditioning and heating dealer that holds the appropriate credentials to install and service air conditioning and heating equipment.


If you would like to learn more about our Phoenix AC Maintenance Services we offer to pick up the phone and call one of our Preventative Air Conditioning Maintenance Technicians today at 602.814.0004.