Before the season starts, it is a good idea to have your central AC system tuned up.
This usually consists of:
- a filter change,
- refrigerant pressure check and
- a visual inspection of your ductwork and all other equipment.
While some individual items could seem to be insignificant, not doing them can ruin your system over time.
Different companies express what it is they do by calling it different names (“28 point checkup”, “precision tune up”, or just maintenance), but the basics remain the same. All the while, you could spend exponentially more money by running your poorly maintained air conditioning system.
If you are looking for a way to lower utility bills and cut costs this summer, tuning up your homes HVAC system continually proves to be a worthwhile and sound investment.
Don’t just take our word for it. EnergyStar has an article on residential air conditioning maintenance that you can read here.
Maintenance Checklist: Below is a list of services that are performed on your HVAC system during a normal maintenance visit
- Inspect unit for proper refrigerant levels and provide quote for adjustment if necessary
- Clean dirt, leaves and debris from inside cabinet if necessary
- Inspect base pan for restricted drain openings—remove obstructions as necessary
- Inspect coil and provide quote for cleaning as needed
- Inspect cabinet and 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
- Inspect 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. provide quote for cleaning 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
- 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: Not all items apply to every situation. Additional cost may apply according to existing unit condition in accordance with individual maintenance plan and contract.