Important Signs You Need a Furnace Repair Service The average life expectancy of a furnace is about fifteen years, and it is important to have regular maintenance to ensure that it runs to its maximum level. Before your furnace’s lifespan decreases, watch and listen for signs that your heater might need some tuning. The first manifestation that there is a potential problem with your furnace is a neglected or ignored furnace for a year or more. When was the last time you had a professional checked your furnace? If your answer is one year or even longer than that, call a trusted, reliable, and reputable professional furnace technician immediately for the annual maintenance. You filter likely will need to be replaced, and experts actually recommend replacing filters every month. Your furnace can potentially leak either water or gas, and f you see water pooling under or around your furnace, this is possibly caused by a clogged condensate line that must be addressed by a professional furnace repair technician. Gas leak can be manifested when you smell gas while your furnace is on, so shut-off your furnace immediately by opening it up, finding the gas supply valve, and turn it off. Avoid turning on a light switch, using gadgets or appliances, and lighting matches or lighters that can ignite a fire, and call a local professional furnace technician as soon as possible. If you are hearing strange sounds at night like scrape, thump, or bang that is a clear red flag needing furnace repair. If the air blows weak, then that means problems with the motor, belts or fans, that require inspection and repair made by a professional furnace repair technician. A definite warning sign that your furnace needs repair is if the thermostat stops working, wherein you need to turn it higher and higher to get the heat you need. Thermostat issues may include loose wiring, blown fuses, or tripped circuit breakers. If your utility bill suddenly increased, it is either caused by a heating issue or AC problem, and an HVAC technician can help in ruling out the problem using his expertise, tools, and equipment. Same is true if your furnace blows cold air, as it may be caused by pilot light or thermocouple issues. Thermostat issues, improper air circulation, and clogged filter may cause your furnace to kick on and off repeatedly, a clear indication that your furnace is over cycling. Do not waste your money on repairs and monthly high energy bill, you need a new HVAC system is yours is more than 15 years old.