Why Does My Breaker Keep Tripping? Ottawa Electrician Explains
You flip the breaker back on, walk away, and minutes later — it trips again. A breaker tripping once is an inconvenience. A breaker that keeps tripping is your electrical system warning you that something is wrong. Whether it is an overloaded circuit, a faulty appliance, or a wiring issue hidden behind your walls, ignoring a repeatedly tripping breaker can lead to overheating, damaged equipment, or even an electrical fire. Here is exactly why your breaker keeps tripping and what to do about it.
🔵 Quick Answer — Why Your Breaker Keeps Tripping
The most common cause of breaker tripping in Ottawa homes is a circuit overload — too many devices drawing power from one circuit. Other causes include short circuits, ground faults, faulty appliances, aging breakers, and outdated panels. If the breaker trips immediately after reset or you notice a burning smell, stop resetting it and call an electrician.
A licensed electrician can diagnose the exact cause in minutes — often during a single visit.
How Circuit Breakers Work (And Why They Trip)
Before diagnosing why your breaker keeps tripping, it helps to understand what a circuit breaker actually does. Every circuit in your home is protected by a breaker inside your electrical panel. Each breaker is designed to carry a specific amperage — typically 15 or 20 amps for standard household circuits.
When the current flowing through the circuit exceeds the breaker’s rated capacity, the breaker trips — cutting power to that circuit before the wires overheat. This is a safety feature, not a malfunction. The breaker is doing exactly what it was designed to do: protecting your home from electrical fires.
The key question is why the current exceeded the limit. That answer determines whether you have a simple fix or a serious problem that requires professional circuit breaker repair.
7 Common Causes of Breaker Tripping in Ottawa Homes
Here are the most frequent reasons we see when Ottawa homeowners call us about a breaker that keeps tripping, listed from most common to least common:
💡 Ottawa Winter Tip: Breaker tripping spikes every winter in Ottawa when homeowners plug in space heaters, portable radiators, and heated blankets. A single 1,500W space heater draws 12.5 amps — nearly the full capacity of a 15-amp circuit. Learn more in our space heater safety guide.
Quick Diagnostic Guide: Identify Your Breaker Issue
Use this table to narrow down what is causing your breaker to trip:
How to Safely Reset a Tripped Breaker
If a breaker trips in your home, follow these steps before calling an electrician:
Identify the tripped breaker. Open your electrical panel. A tripped breaker will be in the middle position — neither fully on nor fully off.
Turn off or unplug devices on the affected circuit before resetting. This reduces the load and helps prevent immediate re-tripping.
Push the breaker fully to OFF first, then flip it to ON. Breakers must be fully reset — pushing a tripped breaker directly to ON will not work.
Reconnect devices one at a time to identify which appliance or outlet is causing the overload.
If the breaker trips again immediately, do not continue resetting. This indicates a short circuit, ground fault, or wiring issue that requires a licensed electrician.
⚠️ Never do this: Do not hold a breaker in the ON position, tape it on, or use a higher-rated breaker to stop the tripping. These are extremely dangerous practices that bypass your home’s safety protection and can cause wiring to overheat and start a fire. Learn more about why DIY electrical work is dangerous.
When to Call an Ottawa Electrician for Breaker Tripping
Some breaker tripping situations are simple overload issues you can resolve by redistributing appliances. Others require professional diagnosis. Call a licensed electrician if:
🔴 The breaker trips immediately after reset — every time, without any load.
🔴 You notice a burning smell, smoke, or sparks at the panel.
🔴 The breaker feels hot to the touch or the panel faceplate is warm.
🔴 Multiple breakers trip simultaneously or your main breaker trips.
🔴 The same breaker has tripped more than three times in a month.
🔴 You see scorch marks, melted plastic, or discolouration inside the panel.
🔴 Your home is more than 25 years old and the panel has never been inspected.
For any of these situations, our 24/7 emergency electrician service is available for urgent calls. For non-emergency diagnosis, schedule a convenient appointment through our online booking page.
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Circuit Breaker Repair Cost in Ottawa
The cost to fix a tripping breaker depends entirely on what is causing it. Here is what Ottawa homeowners typically pay in 2026:
Most breaker issues are resolved during a single visit for under $500. Major panel work is a larger investment but prevents ongoing tripping problems across your entire home. See our detailed breakdown in the electrical panel upgrade cost guide.
How to Prevent Breaker Tripping in Your Ottawa Home
Many breaker tripping issues can be avoided entirely with proper electrical habits:
Spread high-draw appliances across multiple circuits. Never run more than one major appliance on the same outlet or circuit. Your kitchen should have at least two dedicated circuits for countertop appliances.
Avoid daisy-chaining power bars. Plugging a power strip into another power strip does not increase your circuit’s capacity — it just makes it easier to overload the same circuit. Use a whole-home surge protector instead of relying on power bars.
Install dedicated circuits for heavy-use appliances. Dishwashers, microwaves, washing machines, EV chargers, and space heaters each deserve their own dedicated circuit.
Schedule a panel inspection every 10 years. A licensed electrician can identify aging breakers, loose connections, and overwired panels before they become problems.
Upgrade your panel before adding major loads. If you are planning to add an EV charger, hot tub, workshop, or central air conditioning, get a panel capacity assessment first.
Why Ottawa Homeowners Trust Electricians Ottawa for Breaker Problems
At Electricians Ottawa, breaker diagnostics and circuit breaker repair are among our most common calls. Here is why homeowners across the city rely on us:
✅ Same-day service available — most breaker issues diagnosed and resolved in one visit.
✅ Upfront, flat-rate pricing — you know the cost before work begins.
✅ Licensed and ESA-compliant — all work meets Ontario Electrical Code requirements.
✅ 24/7 emergency response — for burning smells, sparking panels, or total power loss.
✅ Full-service panel shop — from single breaker replacements to complete panel and circuit upgrades.
Browse all of our electrical repair services or complete service list.
Frequently Asked Questions About Breaker Tripping
Why does my breaker trip when I turn on the microwave?
Microwaves draw 12–15 amps, which is close to the full capacity of a 15-amp circuit. If anything else on the same circuit is also drawing power — a coffee maker, toaster, or even the kitchen lights — the combined load trips the breaker. The solution is a dedicated circuit for the microwave.
Is a tripped breaker dangerous?
A breaker that trips once from a known overload is not dangerous — it is working as designed. However, a breaker that trips repeatedly, trips immediately after reset, or is accompanied by a burning smell or heat indicates a potentially dangerous condition that needs professional attention.
How many times can I safely reset a tripped breaker?
You can safely reset a breaker once after identifying and removing the overload. If it trips a second time, investigate further using the plug-in-one-at-a-time method. If it trips a third time or trips immediately after reset, stop resetting it and call a licensed electrician.
Can a bad breaker cause a fire?
Yes. A breaker that fails to trip when it should allows wires to overheat beyond their rated capacity. Conversely, a breaker that is physically damaged can develop internal arcing. Both conditions are fire hazards. If your breaker shows signs of physical damage, discolouration, or excessive heat, it must be replaced immediately.
How much does it cost to fix a breaker that keeps tripping in Ottawa?
Most breaker tripping repairs in Ottawa cost between $150 and $500, depending on the cause. A simple breaker replacement is $150–$350. If the issue requires a new dedicated circuit, expect $250–$600. A full panel upgrade for chronic overloading runs $2,000–$5,000.
Why does my breaker trip only at night?
Evening tripping usually means your household draws the most power at night — when everyone is home using lights, television, cooking appliances, and heating systems simultaneously. This is a classic overloaded circuit scenario. A panel inspection can determine if your home needs additional circuits or a capacity upgrade.
What is the difference between a GFCI trip and a regular breaker trip?
A standard breaker trips from overcurrent — too many amps flowing through the circuit. A GFCI (Ground Fault Circuit Interrupter) trips when it detects current leaking to ground, which indicates a potential electrocution hazard. GFCI devices have a test and reset button right on the outlet or breaker face.
Do I need to upgrade from a 100-amp to a 200-amp panel?
If your breakers trip frequently across multiple circuits, or if you are planning to add major electrical loads like an EV charger, central air conditioning, or home workshop, a 200-amp upgrade is strongly recommended. Most modern Ottawa homes require 200-amp service to support today’s electrical demands.
Can I replace a 15-amp breaker with a 20-amp breaker to stop tripping?
Absolutely not. The breaker is sized to match the wire gauge in your walls. A 15-amp breaker protects 14-gauge wire. Installing a 20-amp breaker on 14-gauge wire allows the wire to overheat without tripping — creating a serious fire hazard. Only a licensed electrician should determine the correct breaker size for each circuit.
Why do my breakers trip more often in winter in Ottawa?
Ottawa winters push electrical systems to their limits. Space heaters, electric baseboard heaters, heated blankets, holiday lighting, and increased indoor appliance use all contribute to higher circuit loads. If your home was wired decades ago, the panel may not have the capacity for modern winter demands. A panel assessment can identify if an upgrade is needed.
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