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Furnace Repair · Winnipeg, MB

Furnace Repair in Winnipeg, MB

When a furnace quits in a Winnipeg winter, the house cools fast. A few safe checks can sometimes get heat back on while you wait for a technician.

  • Furnace repairs, replacements and heat pumps
  • Every Winnipeg neighbourhood and nearby RMs
  • Get a quote before any work starts

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Check the basics

Make sure the thermostat is set to Heat and a few degrees above room temperature, with fresh batteries. Check the breaker for the furnace and look at the filter; a badly clogged filter can make the furnace overheat and shut itself off.

The furnace switch

Most furnaces have a power switch that looks like a light switch, on or near the furnace or at the top of the basement stairs. It's easy to flip off by mistake.

Diagram: the furnace switch looks like a light switch, often with a red cover plate, on or near the furnace or at the top of the basement stairs.
Diagram: the furnace switch looks like a light switch, often with a red cover plate, on or near the furnace or at the top of the basement stairs.

Frosted or blocked vents

High-efficiency furnaces vent through plastic pipes on an outside wall or the roof. In deep cold, snow, drifting and frost can block them, and the furnace shuts down for safety. See frozen furnace vents.

Starts then stops

A furnace that lights and then shuts off after a few seconds often has a dirty flame sensor or an ignition problem. Repeated tries and lockouts need a technician.

Cold air from the vents

If the blower runs but the air is cold, the burners may not be lighting, or the furnace may be in a safety lockout. Note any flashing light codes on the control board.

Keep the house safe

While waiting in a cold snap, close curtains, shut doors to unused rooms and open cabinet doors under sinks on outside walls. Never use a gas oven or barbecue to heat the house.

Gas and CO safety

If you smell gas, leave the house and phone your gas utility's emergency line from outside. If a carbon monoxide alarm sounds, get everyone out and phone 911.

Get it fixed

Tell the technician what the furnace is doing, any light codes and its age. Send a request and an HVAC technician will get in touch.

Thermostat dial on a wall

Frequently asked questions

Why does my furnace keep shutting off?
Common causes are a clogged filter, a blocked vent pipe, a dirty flame sensor or a faulty pressure switch.
What temperature can pipes freeze?
It depends on the house, but in Winnipeg's deep cold, pipes in outside walls can freeze within hours of losing heat.

Other HVAC services

Furnace ReplacementHigh-efficiency gas furnaces sized for Prairie winters.Cold-Climate Heat PumpsHeat in spring and fall, cooling all summer, backup for deep cold.Air ConditioningCentral AC repairs, new systems and spring start-up.Boilers & Hot Water HeatRadiators, boilers and in-floor heating in older and newer homes.Humidifiers & HRVsDry winter air, window frost and fresh-air ventilation.Furnace Tune-UpsFall checks that catch failures before the deep cold.Ductless Mini-SplitsCooling and heat for radiator homes, additions and hot rooms.

Need furnace repair in Winnipeg?

Send a request and an HVAC technician will get in touch. Requests answered 7 days a week.

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Request an HVAC technician
Request an HVAC technician