furnace problems

Troubleshooting Common Furnace Problems

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Before calling for professional furnace service, you can try to troubleshoot some common furnace problems by checking the thermostat, changing the furnace filter, and ensuring that there’s power to the system.

Check the Thermostat
Sometimes fixing a furnace problem is as easy as ensuring the thermostat is:

  • On and has working batteries
  • Set to the correct settings

Batteries can run low or someone could accidentally change the settings, turning off the furnace. While it sounds like straightforward advice, every year we go on multiple service calls where we only have to replace a few batteries.

Check the Furnace Filter
We recommend homeowners check their furnace filter every month because if it becomes clogged, it can cause damage to the system and/or turn it off. Even if your filter is rated to last longer than 30 days, it can become full due to pets, exotic cooking or smoking inside. If you’re having issues with your furnace, we always recommend checking and changing the furnace filter before calling for service.

Check Furnace Power
There are two places that provide power to the furnace: the breaker box and the furnace switch near the unit. If the breaker trips or the furnace switch is flipped, obviously the heating system won’t work. If the furnace is continually tripping the breaker, there’s a deeper issue that needs to be investigated by a certified HVAC technician.

Has there been a recent snowstorm? Make sure the furnace intake and exhaust pipe are clear of snow and not obstructed.

If you’re dealing with furnace problems and the thermostat, filter or power is not to blame, you should call for professional heating service.

Don’t hesitate to contact the experts at HAMCO Heating & Cooling Ltd.

HAMCO Heating & Cooling Ltd. has been proudly serving Hamilton, Burlington, Oakville, Grimsby and Brantford for over 70 years and we’ve worked hard to establish a reputation as a quality heating installer in southern Ontario. We invite you to read reviews from previous customers about our service.

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