Weather is getting that much cooler and here at Nelson’s Heating & Cooling, we are beginning to receive calls regarding issues with heating systems. This is the time of year where heating system are working full time and with the extra workload, it may cause problems. Below, we have detailed the five of the most common heating and furnace problems this time of the year.

Clogged/Dirty Filters

Clogged and dirty filters are one of the most common problems when it comes to a furnace and heating system. Clogged and dirty filters reduce the airflow of the system causing the circulation process to be more difficult while putting additional pressure on the system. A clogged filter can also damage the limit switch and affect the working of the fan. It is recommended to replace filters every month in order to improve the efficiency and expand the lifespan.

Lack of Maintenance

The highest priced and most efficient heating system is still accustomed to breaking and wearing down without maintenance. If it is not maintained regularly, problems might occur such as: increase in the energy cost, unexpected breakdowns or poor performance. A regular inspection will help run the system reliably and efficiently.

Mechanical Tear and Wear

A furnace or heating system is subject to tear and wear. These can occur at any point of time and may lead to airflow problems. If not treated timely, these can also cause overheating or heat control problems. Furnaces are made of many components and if they stop functioning properly, the entire unit will stop working.

Pilot Control/Ignition Control

Ignition and pilot controls are two of the most important components of the furnace unit. Check out which type of ignition system is in your furnace. If it is a hot surface ignition system, it will use some resistance heating element. On the other hand, if it’s an intermittent pilot system, it will use a high voltage electrical spark in order to ignite the gas pilot. Should they stop working, contact Nelson’s immediately so that we can help fix the issue.


When the thermostat is not working properly, no heat will be produced and the hot air won’t get circulated. The intermittent heat that is responsible for ensuring comfort will also cease to exist. Check your batteries if the thermostat is not working properly.

The five problems above are some of the most common heating and furnace problems that we have seen over the past couple of years during this time of year. You can avoid all these issues and ensure a properly functioning heating system by ensuring regular maintenance and timely repairs. Contact Nelson’s Heating & Cooling and get the unit checked thoroughly and ensure timely repair, if any, for its proper maintenance.