Preventative Maintenance for Residential and Commercial
Preventative maintenance checks prevent utility overpayment and avert system failures through predictive maintenance that can help extend the life of your system. The old but true cliche' "out of sight, out of mind" is often the reason for neglected maintenance guidelines for your system. Our systems are usually installed where they aren't seen, such as in a section of the basement, a closet, on rooftops, or in mechanical rooms, making them easy to ignore. The systems are simply taken for granted until they fail. Decreased efficiency, utility overpayment, discomfort, loss of productivity, eventual premature replacement, and higher repair costs are the result. Just because your system is out of sight, does not mean it can be neglected. Getting your system checked twice annually is just as important as changing the oil in your car every 3,000 miles!
What should I expect from my service technician while performing a preventative maintenance check?
- Check system functions, safety controls and adjust the operating sequence where appropriate.
- Inspect electrical components and connections and repair/replace or tighten as required.
- Ensure proper airflow and change dirty air filters.
- Inspect pumps, lubricate, and check flow rates where appropriate.
- Clean and lubricate motors as required.
- Examine belts, adjust and align as required.
- Inspect, clean and balance blowers as required.
Spring Visit (preparation for summer season):
- Clean inside coil, condensate pans, condensate traps, and condensate lines to prevent obstructions.
- Clean outside coil and straighten fins for efficient operation.
- Check refrigerant levels and if low, find the leak. (According to many equipment manufacturers, a 10% refrigerant loss will result in a 20% decrease in system efficiency!)
Fall Visit (preparation for winter season):
- Clean the burner assembly.
- Remove soot from fireside of burner.
- Check and clean operation of humidifier.
- Visually or with remote camera, inspect heat exchanger for cracks.
- Adjust air/fuel ratio of burner and perform combustion analysis. (Instrumentation used for combustion analysis is a means of fine-tuning a burner to achieve maximum fuel efficiency and "optimum firing.")
Note: For heat pump applications, winter season inspections repeat a number of the summer procedures plus several additional checks. Maintaining semi-annual preventative maintenance checks for heatpumps is also important.