Check your filter every month, especially during heavy use months (winter and summer). If the filter looks dirty after a month, change it. At a minimum, change the filter every three months. A dirty filter slows air flow and makes the system work harder to keep you warm or cool, which wastes energy. A clean filter prevents dust and dirt from building up in the system, which leads to expensive maintenance or early system failure.
Just as a tune-up for your car can improve your gas mileage, a yearly tune-up of your heating and cooling system can improve efficiency and comfort.
A programmable thermostat is ideal for people who are away from home during set periods of time throughout the week. Through proper use of pre-programmed settings, a programmable thermostat can save you about $180 every year in energy costs. A wireless enabled thermostat allows you to control your thermostat from your phone or smart device.
Ducts that move air to and from a forced air furnace, central air conditioner, or heat pump often result in loss of energy. Sealing and insulating ducts can improve the efficiency of your heating and cooling system by as much as 20 percent - and sometimes much more. If you are interested in having your ductwork evaluated, contact a professional contractor who can evaluate your ducts for improvements. For additional information please review the ENERGY STAR Duct Sealing brochure .
If your HVAC equipment is more than 10 years old or is not keeping your house comfortable, have it evaluated by a professional HVAC contractor. If it is not performing efficiently or needs upgrading, consider replacing it with a unit that has earned the ENERGY STAR label. There may also be rebates available through Mass Save or the manufacturer for your new system. Depending on where you live, replacing your old heating and cooling equipment with ENERGY STAR qualified equipment can cut your annual energy bill by nearly $200. But, before you invest in a new HVAC system, make sure that you have addressed the big air leaks in your house and the duct system. Sometimes, these are the real sources of problems, rather than your HVAC equipment.
Ask about proper installation of your new equipment.
Replacing your old heating and cooling equipment with new, energy efficient models is a great start. But, to make sure that you get the best performance, the new equipment must be properly installed. In fact, improper installation can reduce system efficiency by up to 30 percent- costing you more on your utility bills and possibly shortening the equipment's life.
Make sure to ask your contractor if their work meets guidelines set by ENERGY STAR and the Air Conditioning Contractors of America (ACCA). These guidelines include:
Proper equipment sizing
Installing the right size equipment for the home is essential to getting the best performance and comfort. Many homeowners believe that bigger is better when buying new heating and cooling equipment. But a system that's too large will not keep your home comfortable because of frequent 'on/off' cycling. Incorrect sizing can also put stress on system components and shorten the equipment's life. To ensure proper sizing, your contractor should provide a copy of the home's heat gain/loss calculations for your records.
To ensure that ducts are properly sealed, your contractor should test the leakage rate. If the ducts are very leaky (i.e. more than 20 percent of the air moving through the system is leaking into spaces you do not want heated or cooled) your contractor should use duct sealant (mastic), a metal-backed (foil) tape, or an aerosol sealant to seal the seams and connections of ducts. After the ducts are sealed, ask your contractor to wrap them in insulation.
Proper refrigerant charge (central air conditioners and heat pumps only)
A properly charged system will operate more efficiently and help prolong the life of the heating and cooling system. To ensure the system has the correct amount of refrigerant, a contractor must test and confirm that the system is properly charged. If the system is not properly charged, the contractor should make the appropriate adjustments by adding or removing refrigerant.
If airflow in your heating and cooling system is too high or too low, you may confront problems and higher utility bills. A contractor should test airflow and make any needed adjustments for optimal performance.
Need some advice on how to trouble shoot central air conditioner.?
Your discription is a little vague but it sounds like it could be the transformer or one or both of the capacitors. Is there a hum when the unit is supposed to be running? Is it silent, with no noise at all? The hum is a sign that the compressor is not starting or the fan motor is not starting. If the fan motor wo not go the compressor will build too much head pressure and shut itself down by blowing the breakers. This is very bad for the compressor. If there is no noise at all from the unit, then the signal is not getting thru form the Tstat or there's no power to the Tstat so someone needs to check the output at the transformer to see it you've got the 24v the circuit needs to operate. This forumn is not designed for back and forth questions so I hope you can figure it out from here. If not, do not take a chance on ruining your compressor. It's the heart of your A/C and it's expensive to replace but that is not a very good idea, not as good as replacing the whole unit. Good Luck John