Tag Archives: Furnace problems

Furnace Problem Troubleshooting

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When the temperature starts to drop, home and business owners count on their furnaces to keep them comfortable. We never notice problems with our furnace until we need it to work and it doesn’t. There are a number of problems that can cause your furnace to not respond or function properly. Some of these issues are easy enough to troubleshoot, but others require an experienced heating, ventilation, and air conditioning, or HVAC, professional. If you’re experiencing furnace issues, but don’t know how furnace works, we can help.

Furnace Problems and Causes

There are a wide array of problems you can experience with your furnace. Most problems can be narrowed down to one faulty component or misaligned wire. Some issues may come from your specific kind of furnace, however. An electric furnace and a gas furnace are similar, but have different components. If you’re furnace isn’t working, you can check the different parts of your furnace for problems based on the following issues.

Furnace maintenance and repair can keep your unit functioning as long as it's supposed to.
  • Noisy Furnace If your unit is making loud noises while operating, this could signal a few things. Chances are there is a loose component somewhere in the system. Mechanical pieces can shake loose over time. It could also signify a clogged burner if you have a gas furnace. If your unit is making sounds that it wasn’t making before, you can inspect it to see if the problem is visible. Make sure to check to see if your air filter is clogged. If you can’t find it, or would rather trust a professional, then you should call an experienced HVAC professional to take a look for you.
  • Unit Cycling Constantly If your furnace is cycling more often than it used to, this could indicate a number of problems. Your filter could be clogged which could create air flow problems. If there is another clog somewhere in the ducts, this could add to it. It could also be a problem with your thermostat. It could be a damaged sensor or loose wiring..
  • Blower Running Constantly This problem is similar to the furnace cycling more often than normal, but it’s just one component that If the blower in your furnace is running all the time, this could signify problems with the limit switch. It might be damaged and need replacement.
  • Low to No Heat If your furnace isn’t pushing out hot air, or isn’t pushing out enough hot air, it could also be a number of problems. Your thermostat might be malfunctioning, which would mean it needs repair or replacement. It could also be that your air filter is clogged and needs cleaning or replacing. If your furnace is blowing cold air, it could be a problem with the heating elements specific to your type of furnace. If it has never heated your home properly, it may be too small and need to be replaced with a larger unit. If you can’t find the answer to the question “Why is my heater blowing out cool air in my house?” then you should consider hiring an HVAC professional to inspect your furnace.
  • Inaccurate Thermostat Reading If your thermostat is telling you that your home is a toasty 80 degrees Fahrenheit when it is actually 45 degrees like it is outside, then you are probably having an issue with the thermostat. Either the sensor or sensors aren’t reading the temperature properly, or your thermostat needs repairs. Either way, something with the thermostats electronics needs to be diagnosed and repaired. This is the easiest way to answer the question “How do I know if my furnace thermostat is bad?”
  • Leaks This can be a huge problem if not treated quickly.  A refrigerant leak has serious consequences for the environment, but should not have an immediate impact on your personal health. If you have a gas furnace, you have more to worry about. Your furnace uses natural gas to heat your home, and a gas leak presents serious health hazards. Natural gas is poisonous if inhaled in high rates. It could also explode if enough of it gets trapped in an enclosed space. Your furnace also produces carbon monoxide through its heating process. If you have a low furnace efficiency model, this is probably produced in a gaseous form, which can harm you, your family, and your pets. Both gases are odorless. Natural gas has an additive in it that gives it a smell to make it easier to detect. If you smell sulfur or rotten eggs, shut off your gas if you can, then call emergency services and a licensed plumbing and HVAC professional to come find your leak and fix it. You can detect carbon monoxide leaks with a carbon monoxide sensor, available for sale at most home improvement stores.

Preventing Furnace Problems

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If none of these problems match your problem, then you’re probably asking yourself “What would cause a furnace not to kick on?” If your furnace won’t start, you should consider calling a professional to come and look at the problem. It could be a problem with the wiring in your thermostat, as well as wiring in the furnace itself. You could have restricted air flow, or a leak in your system causing your furnace to malfunction. You could try resetting your furnace to solve a few of these problems. But how do you reset a furnace? Turn down your furnace thermostat to its lowest setting. Turn the circuit in your circuit breaker connected to your furnace off. If you have a gas furnace, turn off the main gas but leave the pilot light gas on, and light the pilot light. Then restart the power, and hold down the reset button for your furnace. If that doesn’t solve your problem, then it’s time to start considering look up Roselle, IL furnace services. How much does it cost to fix a furnace? That really depends on what is wrong with your furnace and your home. The average price of most furnace repairs is approximately 300 dollars. But the best way to ensure that your furnace never needs serious repairs that cost that much money is to ensure an expert looks it over once a year. Many HVAC companies offer inspection services where they will come to your home, look at your furnace, clean it out, repair what needs repairing, and leave your furnace working like new. Just like green roofs can help insulate homes and increase energy efficiency, regular maintenance on your furnace can keep it from breaking down when you need it most. For more information on a service plan for your furnace, or furnace repairs in Roselle and Schaumburg, IL, contact the HVAC experts of Temperature Control Maintenance at (630) 333-9306 to schedule an appointment today!