Before we begin, we want to remind you that if you suspect a gas leak, vacate the home ASAP and call the gas company. If you don’t have the number on hand, call 911. For your family’s health and safety, it’s not worth staying indoors. You should also make sure the home is properly equipped with smoke detectors and carbon monoxide detectors that are regularly tested.
Otherwise, problems with gas furnaces typically are not such a huge deal. We want to give you an idea of what may go wrong, so you can narrow in a problem before you call a technician (or even “fix” the problem on your own).