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What to check if your furnace isn’t working

Furnace on the fritz? Here are a few things to check if your furnace isn’t working:

  • Power switch – is the power on? If so, try turning the furnace off and then on again.
  • Furnace filter – check to see if the filter is clogged. If it is, exchange it for a new one. You should be changing your furnace filter ever 3 months.
  • Batteries in the thermostat – check the batteries in your thermostat and replace them if they’re low.
  • Flame sensor – turn off the power to your furnace (this is an important first step) then remove the sensor and clean it.
  • Pilot light – check to make sure the pilot light is on. If it’s out, relight it using your furnace model’s igniting instructions.
  • Air intake and exhaust pipes – check the exhaust flue for blockages and clear any blockage you find. For example, during the winter in Alberta, you might find icicles covering the screen of the flue. Remove these to solve the problem.

If one of these is not the issue, you may need a professional to help you uncover and solve the problem. Don’t wait until it’s too late – a broken furnace, especially during an Edmonton winter, can result in broken and burst water pipes! Find a local furnace repair contractor to fix the problem as soon as possible.