# Charlotte Comfort Systems: HVAC Repair, Maintenance, Installation Serving Charlotte NC

> Providing quality furnace and air conditioner repairs, maintenance, and installation in NC \& SC\. Trusted HVAC services since 1998\.

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## Pages
- [HVAC Comfort Specials](https://charlottecomfortsystems.com/specials/)
- [Home](https://charlottecomfortsystems.com/)
- [Tax Credits](https://charlottecomfortsystems.com/tax-credits/)
- [About Us](https://charlottecomfortsystems.com/about-us/)
- [Lennox Products](https://charlottecomfortsystems.com/lennox-products/)

## Posts
- [How Rapid Thermostat Switching Can Stress Your HVAC System](https://charlottecomfortsystems.com/how-rapid-thermostat-switching-can-stress-your-hvac-system/): Rapid changes can prevent the system from fully equalizing pressures, especially in heat pumps, which are common in our area\.
- [The Hidden Dangers of Frozen Pipes During Winter](https://charlottecomfortsystems.com/the-hidden-dangers-of-frozen-pipes-during-winter/): When the heat is turned off or set too low, cold air can quickly reach pipes throughout your home, allowing temperatures to drop below freezing\.
- [Understanding Your Heat Pump’s Defrost Cycle](https://charlottecomfortsystems.com/understanding-your-heat-pump-defrost-cycle/): Heat pumps move heat from the outdoor air into your home\. On cold, humid, or freezing days, moisture in the outdoor air can freeze on the heat pump’s outdoor coil\.
- [Is Your Furnace Blowing Cold Air?](https://charlottecomfortsystems.com/is-your-furnace-blowing-cold-air/): When you turn on the heat, the last thing you want is a blast of cold air\. Sometimes the fix is simple\. Other times, cold air can be a sign that your furnace needs professional attention\.
- [Should You Cover Your Air Conditioner During Fall and Winter?](https://charlottecomfortsystems.com/should-you-cover-your-air-conditioner-during-fall-and-winter/): You don’t need to fully cover your air conditioner for winter, but a partial, breathable top cover can help keep debris out and extend the life of your unit\.

## Products
- [Lennox S40 Thermostat Quick Start Guide](https://charlottecomfortsystems.com/hvac-comfort-systems/lennox-s40-thermostat-quick-start-guide/): User Manual Download
- [Lennox S40 Thermostat Wireless Extender Quickstart Guide](https://charlottecomfortsystems.com/hvac-comfort-systems/lennox-s40-thermostat-wireless-extender-quickstart-guide/): User Manual Download
- [Lennox ComfortSense 5500 User Manual](https://charlottecomfortsystems.com/hvac-comfort-systems/lennox-comfortsense-5500-user-manual/): User Manual Download
- [Lennox ComfortSense 7500 Thermostat User Guide](https://charlottecomfortsystems.com/hvac-comfort-systems/lennox-comfortsense-7500-thermostat-user-guide/): User Manual Download
- [Lennox S30 E30 Thermostat User Manual](https://charlottecomfortsystems.com/hvac-comfort-systems/lennox-s30-e30-thermostat-user-manual/): User Manual Download

## Portfolio
- [HVAC Maintenance](https://charlottecomfortsystems.com/services/hvac-maintenance/): Schedule an AC system maintenance request online or learn more about our maintenance plans\! 
- [Air Quality](https://charlottecomfortsystems.com/services/air-quality/): From dust and pollen to viruses and humidity, our air quality inspection services can provide solutions to help you breathe easier\.
- [HVAC Installation](https://charlottecomfortsystems.com/services/hvac-installation/): Professional Heating \& Cooling system installation performed by non\-commission HVAC technicians\.
- [HVAC Repair](https://charlottecomfortsystems.com/services/hvac-repairs/): If your Furnace or AC system needs a repair, schedule your appointment quickly and easily with us online\.
- [Cooling](https://charlottecomfortsystems.com/services/cooling/): Don't lose your cool\! You can count on us to help make sure your air conditioner is keeping you comfortable\.

## Categories
- [Staying Comfortable](https://charlottecomfortsystems.com/category/staying-comfortable/)
- [HVAC](https://charlottecomfortsystems.com/category/hvac/)
- [Featured](https://charlottecomfortsystems.com/category/featured/)
- [Cooling](https://charlottecomfortsystems.com/category/cooling/)
- [Heating](https://charlottecomfortsystems.com/category/heating/)

## Section Category
- [header](https://charlottecomfortsystems.com/fusion_tb_category/header/)
- [content](https://charlottecomfortsystems.com/fusion_tb_category/content/)
- [footer](https://charlottecomfortsystems.com/fusion_tb_category/footer/)

## Product categories
- [Lennox](https://charlottecomfortsystems.com/product-category/lennox/)
- [Thermostat Manuals](https://charlottecomfortsystems.com/product-category/thermostat-manuals/)
- [Gas Furnaces](https://charlottecomfortsystems.com/product-category/lennox/gas-furnaces/)
- [Air Conditioners](https://charlottecomfortsystems.com/product-category/lennox/air-conditioners/)
- [Ruud](https://charlottecomfortsystems.com/product-category/ruud/)

## Category
- [sections](https://charlottecomfortsystems.com/element_category/sections/)
- [post\_cards](https://charlottecomfortsystems.com/element_category/post_cards/)
- [elements](https://charlottecomfortsystems.com/element_category/elements/)
- [columns](https://charlottecomfortsystems.com/element_category/columns/)

## Optional
- [Sitemap index](https://charlottecomfortsystems.com/sitemap_index.xml)