HVAC Maintenance


Your HVAC system is going to need an occasional “tune up” during its lifetime. You wouldn’t drive your car 100,000 miles without oil changes and other maintenance; the same is true for your home comfort system. Regular preventative maintenance is the best way to ensure trouble-free operation and peak performance. It also keeps your system running at its optimal efficiency levels, which keeps energy usage and your energy bills in check.

There’s something else that preventative system maintenance gives you, and that’s peace of mind. Pre-season maintenance can help you avoid a system failure on the hottest or coldest day of the year. It can also help you avoid a frantic search for an HVAC contractor that can repair or replace your broken system. Many service dealers provide priority service for their customers who have an annual maintenance or service agreement. Your existing relationship with a service dealer is worth its weight in gold when it’s a 95-degree July day and your air conditioning system has stopped working.

If you’re thinking about replacing an aging home comfort system, our HVAC technicians can offer guidance on proper preventive maintenance as well as annual maintenance and service agreements. At this time, you’ll also want to inquire about Trane’s Optional Extended Warranties.

All HVAC service from RAS includes:

  • A Free Estimate 24/7
  • Emergency Service
  • Same-Day Service

HVAC Maintenance Cypress, TX
HVAC Maintenance Bellaire, TX

Air Conditioning Repair & Heating Repair System Maintenance

If your HVAC system both heats and cools your home, you should have heating system maintenance performed in the spring and fall. If you have a cooling-only or heating-only system, maintenance should be performed at least once a year prior to the heating or cooling season. For a list of what you should expect during a preventive maintenance service check-up, check out our suggested pre-season preventive maintenance list below.

An Inside Look At HVAC System Maintenance

Expect your service dealer to do a complete system operation check on both the cooling and heating modes. If you have a heat pump, your dealer should check the defrost operation, as well. All other major components and safety devices should be checked. The air conditioners coils, both indoors and out, should be cleaned, as well as the indoor blower housing and blower wheel. Most modern residential air conditioning and heating fan motors have permanently lubricated bearings so no additional lubrication is needed.

All Trane residential air conditioning systems produced after 1985 have a direct drive blower, which means there are no fan belts to inspect. However, if you have an older system with a fan belt, be sure to have the fan belts checked and replaced if needed. Your duct system should also be checked. Return air leaks located in unconditioned spaces like attics or crawl areas can cause inefficient operation. Hot or cold air is drawn in through the leak, which is then heated or cooled by your system. This decreases your system’s ability to heat or cool your home and increases your energy bill, as well.

Suggested Pre-Season Preventative Maintenance Checklist

All maintenance and service work should be performed by a professional HVAC company that holds the appropriate credentials to install and service air conditioning and heating equipment.

Outdoor Unit/Air Conditioner or Heat Pump Preventative Maintenance

  • Inspect unit and pad for proper 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 Unit/Furnace or Air Handle.
  • 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 air flow system (ductwork) – check for leaks while 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.
To schedule an appointment in Houston, TX or the surrounding areas, please contact us today.
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