Heating and Air Conditioning Discounts and Promotions Service & Repair$50 OFF Restrictions apply. Not valid with any other offers or discounts. Call Ambient Edge for Complete Details. Click to Open in Print View Frequently Asked Questions How Often Should AC Coils Be Cleaned? Why Is My Heating System Blowing Cold Air? Why Is My Central Heating Pump Making Noise? How To Reset Your Thermostat What Happens If an Air Conditioner Is Not Used for 3-4 Months?