When a furnace isn’t heating, it can be a big issue. Particularly during the winter months. You can check a few things before calling a technician. Some problems can be fixed easily. Others need professional help.
Check the thermostat
Start with the thermostat. Make sure it’s set to heat. Set the temperature higher than the actual room temperature. If the display is off, check the battery. It might need replacing.
If the furnace still doesn’t respond, the problem may be elsewhere.
Check the furnace filter
A clogged filter may block air from the furnace circulation system. That leads to overheating. If so, a safety feature might shut the system off. It does that to avoid damage.
Examine the filter. Replace it if it appears dirty. A clean filter can provide a more efficient passage for air. If it does not restore heating, do not repeatedly turn the furnace back on and off. Just call a technician to investigate further.
Check if the furnace is powered on
Check whether the electrical switch on the furnace has been accidentally turned off. It looks like a regular light switch. It is generally situated near the furnace.
Also, check whether a circuit breaker has tripped. If so, reset it. Frequent trips may signal a problem with either the electrical or mechanical system. That requires expert diagnosis.
Ensure that the air vents are operational
Go around your house. Ensure that the supply vents are open and clear. Items can block airflow from certain vents.
When the airflow is weak everywhere in the house, it may be a problem with the:
- Filter
- Blower motor
- Ductwork
- Any other part of the furnace.
Listen for what the furnace is doing
Listen for any furnace start-up noises.
Does it click and not spark?
Is the blower operating but no warm air is coming out?
Does the system start temporarily but then turn off?
The information can assist a technician in determining the source of a problem. Most ignition issues, faulty sensors, blower problems, and other component failures are not something you can deal with on your own and need to be addressed professionally.
Understand how and when to seek assistance
If the basic checks cannot fix the issue, it is good to have the furnace checked rather than continually trying to start it up. A professional will be able to test the system and find the problem, whether it be ignition, electrical, airflow, heat exchanger, or something else.
But heating issues are not always convenient. You might need help outside of regular business hours. 24/7 furnace repair Calgary services can be handy. A timely assessment can help prevent a small issue from becoming a big one.
Be aware of safety warnings
Certain furnace issues need to be resolved right away. Leave the property if required and get in touch with the proper emergency agency or utility provider if:
- You smell gas
- See evidence of burning
- Detect strange electrical odors
- Suspect a carbon monoxide problem.
The final word
If these checks don’t resolve the problem, seek a professional furnace diagnosis.
