Frequently Asked Questions

How do I know if I have an existing warranty on my furnace, air conditioner or HVAC system?

Look at the label on the equipment for a manufacture date. If the equipment is less than five years old, it may have a warranty, but also may not. Warranty terms and conditions vary...
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What are SEER ratings of air conditioning systems?

SEER is the acronym for Seasonal Energy Efficiency Ratio. The SEER rating is shown as a number, example 13. The higher the number is, the more efficient the air conditioner. For many homeowners a...
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Is Freon now obsolete in air conditioning units?

The most commonly used refrigerant in today’s air conditioners and heat pumps is R22. By 2010, all new air conditioners and heat pumps will be required to use “environmentally sound” refrigerant, such as R410A....
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What should I do when my carbon monoxide (CO) detector alarms?

Verify that it is the carbon monoxide warning and not a low battery warning. Turn off all gas appliances, if possible. Open a window or door for ventilation and call your heating and air...
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I don’t use part of my house. Can I shut off the registers to that part of the house to save energy?

No. Your system was designed to provide a designated amount of air throughout the home. By shutting down some registers, you can cause a lot of damage to your furnace or central air conditioner.
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What do I do if my thermostat has problems?

Check and make sure that the batteries are good, if your thermostat requires them. An adult should try turning the thermostat to the off position and back on to reset the system. If there...
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How much should I turn the thermostat down at night?

To save energy, you can turn the thermostat down at night or when you are not at home. (Programmable thermostats do this automatically.) The thermostat should not be set back more than five degrees....
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Can the furnace and central air conditioner be serviced at the same time or should it be done in the spring or fall before the hot and cold seasons?

Yes, they can be serviced at the same time which could save an additional trip. The best months to do a combined service are March through October. Your central air conditioning system cannot be...
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How often should I have my furnace and central air conditioning serviced?

Most people don’t realize their furnace and air conditioner run more and start and stop more than their automobile. Routine service is very important for energy efficiency and longevity of your equipment. Equipment that...
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How often should I change my furnace filter?

This is the single most important thing that needs to be done to keep your system clean and operating efficiently. If you have a standard furnace filter, we recommend replacing it monthly even if...
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Why is my HVAC system freezing up?

There are several things that can cause your HVAC system to freeze up, most of them usually need to be corrected by a professional technician. Making sure the filter is clean or replaced and...
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Why is it important to have regular maintenance on my home comfort system?

It is important to have routine maintenance of your home comfort system by a Service Experts. If not maintained properly and routinely, even the best heating and air conditioning equipment could cause problems and become less...
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Why don’t you charge by the hour?

Charging a flat rate for the repairs provides more value for our customers because the pricing is up-front and does not adjust. Regardless of the cost of parts or amount of time it takes...
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When replacing the outdoor unit, should the indoor unit also be replaced?

The answer is most likely yes, here’s why. Matched System Design: All air conditioner and heat pump outdoor units are specifically designed to work with matched indoor units for optimum efficiency and performance. The result...
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What should I know about changes in refrigerants?

To protect our environment, numerous changes have taken place with refrigerants used in air conditioning and heat pump systems. These changes are having and will continue to have a significant impact on the air...
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What is a Precision Tune-up, how much does it cost?

In addition to a System Inspection, a Tune-up also includes a complete cleaning and lubrication of the heating or air conditioning equipment components. The cost of a tune-up varies by location, and can generally range between $69 and $149.
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What is a Service Call fee?

A Service Call fee is a flat fee for the cost associated with the time and travel to diagnose, inspect and provide expert recommendations for a home’s heating or air conditioning system.
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Is sound an issue for heating and air conditioning?

Today’s technology has enabled manufacturers to produce air conditioners and heat pumps that are not only highly efficient, but also exceptionally quiet. Loud heating and cooling equipment contribute to sound pollution. Although no financial...
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What does the AFUE of my furnace have to do with energy efficiency?

AFUE is the acronym for Annual Fuel Utilization Efficiency. AFUE is shown as a percentage 92% or 93%. The higher the percentage is the more efficient the furnace.
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Liberty Heating & Cooling

Hours of Operation

Monday - Friday
7:30am - 4:30pm, excluding holidays

Saturday & Sunday by appointment only

Contact Info

  • Bruce Liberty
  • Liberty Heating & Cooling, LLC
  • Call 651-260-6060
  • Email Us