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When To Schedule Maintenance: |
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- If your system heats and cools your home:
Perform maintenance in spring and fall.
- Cooling-only:
Perform maintenance at least once a year, before the cooling season.
- Heating-only:
Perform maintenance at least once a year, before the heating season.
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Outdoor Unit/Air Conditioner or Heat Pump Preventative Maintenance
Checklist |
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- 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
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Indoor Unit/Furnace or Air Handler |
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- 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
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While System is Operating |
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- Monitor system starting characteristics and capabilities
- Listen for abnormal noise
- Search for source of unusual odors
- 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.)
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Find Your Ideal System
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Use the Trane System Customizer to choose a system based on your unique comfort
requirements
Learn more
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| Guide To Cooling |
Want to learn more about the inner workings of air conditioning? View the Trane Guide to cooling.
  Learn more |
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