Furnaces produce heat during chilly winters and are made to last longer. However, it’s still a machine and thus, it experiences wear and tear over time causing it to malfunction. There are some furnace troubleshooting tips that you should know as they can be handy at times.

Furnace Troubleshooting for Lack of Maintenance

This is by far one of the common reasons furnaces fail. Components inside a furnace undergo wear and tear over time and this could lead to anything from minor to major damage resulting in repair or even replacement. This can incur a lot in terms of charges and thus, proper maintenance is crucial. 

Troubleshooting Tip: Reach out to a trusted and certified HVAC technician to get the maintenance done once a year.

Clogged Air Filter

An air filter literally traps debris, dust, dirt, and other unwanted particles thereby improving airflow. Since it helps filter out unwanted debris, it is bound to be clogged and thus, it requires constant cleaning. Clogging leads to inefficiency in performance and it can even lead to strain on the furnace.

Troubleshooting Tip: It is recommended to clean a furnace air filter once a month. This ensures that the filter is clean and can trap unwanted particles from circulating in the house. This will be handy in the long run.

Electric Ignition Issues

There are a few reasons why electric ignition or pilot control won’t work. First up, you need electric ignition to turn on the furnace unless it supports manual ignition. 

Troubleshooting Tip: If the pilot control doesn’t have a manual ignition, read its user manual to know what to do. For all the furnaces with electric ignition, check if all the buttons and circuit breakers are turned on or not. Fluctuation in power could trip the breaker, killing the pilot control temporarily. If nothing works, reach out to an HVAC technician asap.

Unwanted Smell and Sound

A furnace isn’t silent when in operation, it makes some sounds. However, if you hear any clicking, clanging, booming, screeching which you never heard before, this could be a sign that something’s wrong. If there’s some odd odour coming out of the furnace, there could be some problem as well.

Troubleshooting Tip: When it comes to smell, check if the air filter is clogged or not. It isn’t that difficult to clean an air filter. For issues related to sound, it is likely a mechanical issue and thus, a certified HVAC technician from Capital Plumbing can take care of it.

Furnace Blows Out Cold Air

If your furnace is blowing cold air, there are many possible scenarios. The temperature setting is inadequate or the air filter has been clogged up or the furnace capacity is not apt for your home. Other reasons being pilot control not working or insufficient gas or power, etc. 

Troubleshooting Tip: You can clean the air filter to check if the furnace starts working normally. Toggle the temperate settings on the thermostat as well. If nothing works, you will need to get in touch with a certified technician to fix it up. 

Failed or Faulty Thermostat

If you can’t turn on/off or adjust the temperature on the thermostat, it is likely that the thermostat has gone haywire. The batteries inside the thermostat could be completely drained causing the thermostat to not function well. If the thermostat is lighting up but doesn’t fulfill any instructions fed to it, the thermostat is malfunctioning. 

Troubleshooting Tip: You can reset the thermostat or change the batteries to see if it works. Try restarting the thermostat or the entire HVAC system to see if it works or not. If nothing works for you, reach out to Capital Plumbing, one of the trusted HVAC technicians in Canada.