Broken Furnace Troubleshoot Guide

AC Repair
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Warning Signs Your Furnace Needs To Be Repaired or Replaced

Your furnace is the number one source of comfort in your home in chilly weather. When you have an efficient and reliable heating system, your home is always warm and cozy. A broken-down furnace can disrupt this peace at the most inopportune time, leaving you miserable as you wait for the furnace to be repaired or replaced. But it doesn’t have to reach this point. If you pay close attention to your furnace, you’ll catch signs of its impending failure and call a technician to repair it before you need to replace your broken furnace.

Signs You Should Repair Your Furnace

Irregular Maintenance

For your furnace to operate at peak efficiency, it needs to be frequently serviced and maintained. If you neglect to service your furnace regularly, you could miss crucial signs indicating the need for repairs, which can escalate into serious problems. If you haven’t had an HVAC company service your furnace for the past year, then your furnace is overdue for repairs. Our technicians will replace the filter, check for any damage, clean up the furnace, and conduct necessary repairs.

Inadequate Heat

Your furnace blowing air weakly or blowing cold air is a sign that you should schedule a repair service with us. Weak air indicates issues with the fans, motors, or belts, while cold air is caused by a thermocouple or pilot light problem. If you notice that you have to turn up your heat higher, the thermostat could be malfunctioning due to tripped circuit breakers, blown fuses, or loose wiring. Regardless, these aren’t issues you can deal with alone, but a trained technician will determine the problem and resolve it.

Gas or Water Leak

A leaking furnace is very dangerous and should be repaired immediately. If you smell gas, shut down your furnace immediately and then shut off the gas supply valve. Please do not turn on light matches or lights in your house to prevent the gas from igniting, and call us as soon as you can.

Although less dangerous than a gas leak, water leakage affects the performance of your furnace. Check for pools of water around your furnace. A clogged condensate line causes a water leak, and professionals should look at it.

Signs It’s Time Replace Your Furnace

Your Furnace Is Getting Old

The average lifespan of a furnace is 15-18 years, and according to ENERGY STAR, you should consider replacing your furnace if it’s more than 15 years. If you hang on to your old furnace longer, you’ll spend more money on repairs and energy bills; money you could have used to buy a new and more efficient furnace.

Increased Heating Bill

A furnace is designed to be energy efficient. If you’ve had your furnace for a while, then you know the average amount of energy it uses every month. So if you notice an abrupt increase in energy costs or a steady increase in your energy bill over time, despite regularly maintaining your unit and sealing your air ducts properly, consider replacing your furnace.

Frequent Repairs

As your furnace ages, its efficiency reduces, and in the last years of its life, it tends to break down frequently. So if you’ve had to call the HVAC company frequently over the past year, you might have to consider getting a new unit. If you’re worried about the cost, take a look at the amount of money you’ve spent on repairs, and if it’s more than 50% of the cost of a new furnace, it makes sense to get a replacement.


To keep your furnace running smoothly, you need to maintain it regularly. Knowing what to look for, you can preempt furnace breakdown and schedule repairs and replacements on time. At Air Expo, we offer comprehensive furnace repair, replacement, and maintenance services. Contact us today and schedule a service with our friendly service representatives.

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