Another way to guard your HVAC system while you are gone is to perform maintenance before you leave. You should clean or replace your air filter to make sure dirt buildup doesn’t cause issues.  Also, be sure to look for issues such as damaged parts, rust, or refrigerant leaks. If you notice any of these warning signs, contact B&L Ott in Berks County for help. B&L Ott can also help you with making sure your HVAC system is properly maintained.  You don’t want to come home to a broken HVAC system.