When Should I have HVAC Maintenance Done?
The old adage is true: "an ounce of prevention is worth a pound of cure". Below you’ll find Evans' Preventative Maintenance Checklist, which is our proven method to keep your system in the pink and your home in constant comfort.
- All HVAC manufacturers require yearly maintenance to maintain standard warranties and extended warranties.
- We recommend an inspection in the spring and annual major maintenance in the fall.
Preventative Maintenance Checklist
Bi-annual preventative maintenance will ensure that your system runs as efficiently as possible. The Original Evans Air Conditioning will perform the following tasks, depending on the unit:
Outdoor Units
- Inspect unit for proper refrigerant level
- 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 will 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.
- Inspect control box, associated controls, wiring and connections
- Insure all mechanical codes are met
- 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
- Monitor air conditioning and heat pump systems for correct refrigerant charge
- Measure outdoor dry bulb temperature
- Measure indoor dry 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
