Maintenance Agreements | Davis HVAC, LLC

You wouldn’t drive your car 100,000 miles without changing the oil. The same logic holds true for your home comfort system. Regular HVAC 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.

WHEN SHOULD I DO FURNACE 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 system maintenance only: perform maintenance at least once a year, before the cooling season
For furnace maintenance only: perform maintenance at least once a year, before the heating season.

HVAC PREVENTATIVE MAINTENANCE CHECKLIST

Davis HVAC, LLC provides 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. We 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 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

Preventative Maintenance can often spot small problems before they become large. Should repairs be necessary at any time during your agreement, you will receive a 10% discount on all repairs and priority service.