What to do when your circuit breaker trips? Reasons why the heater trips frequently in winter and checks you can do yourself

冬天跳闸特别多：卧室里开着电暖器，再用一下吹风机，「啪」一声半个房子都黑了。地下室租客装了小电炉、电热毯，一到晚上就断电。

A trip protects you.Breakers protect you.——Breaker trips automatically to prevent overheating or fire from excessive current or leakage. Don't ignore trips or repeatedly force reset, or replace with a higher rating breaker.

First find the electrical panel and identify the tripped breaker.

1. The electrical panel is usually a gray metal box mounted on the basement, garage, or laundry room wall.
2. Open the cover to find two rows of breakers. The tripped breaker usuallyStopped midway., Or the switch direction differs from Other; some breakers show a red or orange indicator.
3. The panel cover usually has labels by each breaker (Kitchen, Bedroom 2, etc). If not, it’s advisable to take photos and label them carefully for future reference.

Proper reset procedure

1. Turn off or unplug appliances on that circuit first., Particularly for high-power appliances like electric heaters, kettles, and hair dryers.
2. Reset the breaker that tripped.Push firmly to OFF.(Many breakers won’t reset unless pushed all the way down).
3. Reset fully to ON.
4. Plug in and turn on appliances one at a time to identify which one trips the breaker.

IfTrips immediately with nothing plugged in, If it trips immediately after resetting, there may be a short circuit; stop trying and call Electricians.

Bathroom or kitchen outlets not working: first reset the GFCI.

Many outlets in bathrooms, kitchen counters, outdoors, and garages have GFCI outlets with two buttons “TEST / RESET”. If they trip, the panel may not trip; only that outlet and those downstream lose power.

• Find the button outlet in that group and press it RESET。
• Sometimes the outlet with the buttons is in another room, e.g., a garage outlet connected downstream of a bathroom GFCI.
• Frequent trips may be caused by appliance leakage or water in the outlet (common in outdoor outlets after rain). Use outlets with waterproof covers outside.

Typical causes: self-assessment

1. Overloading a single circuit is most common.

Typical household circuits are 15A, supporting roughly over 1000 watts continuous. A space heater on high draws about 1500W, plus a hairdryer or kettle can overload it.

What you can do yourself:

• High-power appliances like space heaters, electric kettles, hairdryers, microwaves. Distribute devices across different circuits(Outlets in different rooms may share the same circuit; check the panel labels).
• Do not plug space heaters into power bars, Plug directly into the wall outlet; keep curtains or bedding away.
• Frequent winter trips indicate inadequate heating; instead of using space heaters, check Furnaces and vents as shown. What to do if Furnaces is not heating。

2. A specific appliance is faulty

If the same appliance trips the breaker every time, even on another circuit, the appliance is faulty (damaged wiring, water ingress, internal short). Stop using it, repair or replace.

3. Loose or aging outlets and switches

Loose plugs, yellowed or warm outlet faceplates, crackling switches indicate loose wiring, which overheats and risks fire.

4. Insufficient panel capacity

Old panels are 60A or 100A. Adding central AC, EV chargers, basement kitchens increases demand, often tripping main or large breakers. Consult Electricians to assess load and panel upgrade needs.

5. Wiring aging (especially in older homes)

Toronto Some very old homes still have knob and tube wiring or aluminum wiring. These wires may not cause immediate issues but age more easily, become hot or loose, and some Insurance companies increase premiums or require replacement based on your policy.

What tasks you can do yourself and which require Electricians

You can do this yourself:

• Reset the breaker and press the GFCI RESET button.
• Distribute high-power devices across circuits; unplug faulty appliances.
• Label the electrical panel.

Always hire licensed Electricians:

• Trips immediately with nothing plugged in.
• Burning smell, blackened, overheating, smoking.
• Replace sockets, switches, add circuits, replace breakers, upgrade the panel.
• The breaker is broken or won’t reset.

In Ontario, electrical work is regulated by the Electrical Safety Authority (ESA). For Electricians work, hire aLicensed Electrical Contractor, You can check license numbers on the ESA website; for work requiring permits, a proper Electricians will apply for the permit. Whether a homeowner can do certain electrical work or needs a permit depends on the latest ESA rules, Don’t hire unlicensed people just to save money on wiring——If something goes wrong, Insurance may not cover it.

One more thing: Never replace a 15A breaker with a 20A or larger onetripping at “Resolve”. Breaker size matches wire gauge; upsizing breakers risks wiring fire.

Estimated costs

• Please have Electricians inspect onsite to diagnose: check for Electrician Rates & Call-out Fees。
• Replacing a few outlets, switches, adding GFCI: check Outlets, Switches & Fixtures cost。
• Panel upgraded from 100A to 200A: check Cost to upgrade electrical panel。

When hiring Electricians, clearly describe what you observed: which switch trips, how often, what appliances were used when it trips, the approximate age of the house, so Electricians can save time diagnosing and reduce service fees.

FAQ

If a breaker trips and won’t reset, is it broken?

Confirm you’ve pushed the switch fully OFF then back ON; some breakers won’t reset otherwise. If it still trips, unplug all devices on that circuit and try again; if it still won’t reset, call Electricians.

Can space heaters be plugged into power bars?

Not recommended. Space heaters have high power and run long hours; power bars and thin extension cords can overheat. Plug directly into a wall outlet and avoid using Other other high-power devices on the same circuit.

If breakers trip often, can you install a higher-capacity breaker?

No. Breakers match wire capacity; upsizing risks overheating and fire. For frequent trips, find the cause: spread out usage, repair devices, or have Electricians add circuits or upgrade the panel.

Who is responsible if renting and breakers trip often?

Generally, house wiring issues are landlord responsibilities; tenant appliance failures are the tenant’s responsibility. Refer to lease and Ontario regulations. For questions, discuss with landlord and have a licensed Electricians inspect if needed.