Why does my outlet only work sometimes?

An outlet that works intermittently typically indicates a loose connection, which is a serious fire hazard that requires immediate professional attention. This is one of the most dangerous electrical problems homeowners face because loose connections generate heat and can ignite surrounding materials.

The most common cause is a loose wire connection inside the outlet or at the electrical panel. Over time, wire connections can loosen due to thermal expansion and contraction, vibration, or simply age. When the connection is poor, electricity has to "jump" the gap, creating heat and sparks. You might notice the outlet feels warm, hear crackling sounds, or see scorch marks around the outlet face.

Federal Pacific and older panels are particularly prone to this issue, as their breakers can develop poor connections over time. If your home has one of these panels (common in Ottawa homes built between 1950-1980), the intermittent power could be coming from a failing breaker rather than the outlet itself.

Another possibility is a GFCI outlet or breaker that's beginning to fail. GFCI protection is required within 1.5 meters of sinks under the Ontario Electrical Safety Code, and these devices can become hypersensitive or fail to reset properly as they age. If the outlet is in a bathroom, kitchen, or outdoor location, check if there's a GFCI outlet upstream that might be tripping intermittently.

Aluminum wiring, found in many Ottawa homes built in the 1960s-70s, is notorious for developing loose connections at outlets and switches. Aluminum expands and contracts more than copper, gradually loosening connections over time. This creates exactly the intermittent power issues you're experiencing.

Safety warning: Never ignore an intermittent outlet. Loose electrical connections cause thousands of house fires annually in Canada. If you notice any burning smell, warm outlet covers, or scorch marks, shut off the circuit breaker immediately and don't use that outlet until it's professionally repaired.

What you should do: Have a licensed electrician diagnose the problem immediately. In Ontario, outlet repairs typically require an ESA permit, especially if new wiring is needed. The electrician will check connections at the outlet, verify wire integrity, and ensure everything meets current Ontario Electrical Safety Code requirements.

For a professional diagnosis of your intermittent outlet issue, contact Electrical Ottawa for a free consultation. Our ESA-licensed electricians can quickly identify whether it's a simple loose connection or part of a larger electrical system problem.