Question 1

Why are my lights flickering throughout the house?

Accepted Answer

Flickering lights throughout your entire house is a serious electrical issue that requires immediate professional attention. This isn't a simple bulb problem - it indicates a problem with your electrical system that could pose fire and safety risks.

Whole-house flickering typically stems from issues with your main electrical service or panel. The most common causes include loose connections at your electrical meter, problems with the service entrance cables, or failing connections in your main

Question 2

Why does my power blink off for a second then come back?

Accepted Answer

Brief power blinks (lasting 1-3 seconds) are typically caused by Hydro Ottawa's protective equipment responding to temporary faults on the electrical grid, such as tree branches touching power lines or equipment automatically resetting after detecting an issue.

When you experience these momentary power interruptions, the most common cause is the electrical grid's protective systems doing their job. Hydro Ottawa uses devices called reclosers and sectionalizers that automatically shut off power w

Question 3

Why are my outlets not grounded?

Accepted Answer

Your outlets likely aren't grounded because your home has older wiring that was installed before grounding became mandatory in the Ontario Electrical Safety Code. This is extremely common in Ottawa homes built before the 1960s, and it's both a safety concern and an insurance issue that should be addressed.

Understanding Grounding Requirements

Electrical grounding provides a safe path for electrical current to flow to the earth in case of a fault, protecting you from electrocution and preventin

Question 4

Why does my bathroom fan run after I turn it off?

Accepted Answer

Your bathroom fan likely has a built-in timer or humidity sensor that keeps it running after you flip the switch off. This is actually a desirable feature designed to properly ventilate moisture from your bathroom.

Most modern bathroom fans installed in the last 10-15 years come with automatic timer controls that continue running for a preset period (usually 10-60 minutes) after you turn off the wall switch. This ensures adequate moisture removal, which prevents mold growth and protects your ba

Question 5

Why do my lights dim when I turn on an appliance?

Accepted Answer

Lights dimming when appliances turn on indicates your electrical system is being overloaded, either at the circuit level or your main panel. This is a common issue in Ottawa homes, especially older properties with 100-amp services or outdated wiring.

When a high-draw appliance like a microwave, vacuum, or space heater starts up, it creates a sudden demand for electricity. If your electrical system can't supply enough power, the voltage drops temporarily, causing lights to dim. This happens beca

Question 6

Why is there a burning smell from my outlet?

Accepted Answer

A burning smell from an outlet is a serious electrical emergency that requires immediate attention. This typically indicates overheating wires, arcing, or electrical components breaking down - all of which can cause fires.

Stop using the outlet immediately and shut off the circuit breaker that controls it. If you can't identify the correct breaker, turn off the main breaker to your home. Do not plug anything into that outlet or attempt to investigate further. If the burning smell is strong or y

Question 7

Why is my electric baseboard heater not getting hot?

Accepted Answer

Your electric baseboard heater likely isn't getting hot due to a tripped breaker, faulty thermostat, or internal heating element failure. These are the most common causes, and troubleshooting starts with checking your electrical panel.

Start by checking your electrical panel for any tripped breakers. Baseboard heaters are typically on dedicated 240V circuits with double-pole breakers. A tripped breaker will be in the middle position between ON and OFF, or may appear slightly off-center. Reset i

Question 8

Why does my bathroom light flicker when the fan is on?

Accepted Answer

Your bathroom light flickering when the fan runs is typically caused by voltage drop on a shared circuit or loose electrical connections. This is a common issue that can range from a simple wiring problem to a more serious electrical hazard that needs immediate attention.

The most likely cause is that your light and fan share the same circuit, and when the fan motor starts up, it draws a significant amount of current that causes a temporary voltage drop. This voltage dip makes the light dim or

Question 9

Why did half my house lose power?

Accepted Answer

Half your house losing power is typically caused by a lost leg of power from your electrical panel or utility service - this is a common but potentially serious electrical issue that requires immediate attention.

Your home receives 240-volt electrical service through two separate 120-volt "legs" or phases. When one of these legs fails, roughly half your circuits lose power while the other half continue working normally. This creates the distinctive pattern where some rooms work fine while other

Question 10

Why is my outdoor light not working?

Accepted Answer

Your outdoor light likely isn't working due to a tripped GFCI outlet, burned-out bulb, or tripped circuit breaker. Start by checking these simple fixes before calling an electrician.

The most common cause is a tripped GFCI outlet. In Ottawa, the Ontario Electrical Safety Code requires GFCI protection for all outdoor circuits. Look for a GFCI outlet near your outdoor light (often in the garage, basement, or exterior wall) and check if the red "RESET" button is popped out. Press it firmly - you s

Question 11

Why do my lights flicker during a storm?

Accepted Answer

Lights flickering during storms is typically caused by power grid fluctuations as Hydro Ottawa's electrical system responds to weather conditions like wind, rain, and lightning strikes affecting power lines and transformers.

When storms hit Ottawa, several factors can cause your lights to flicker. Wind is often the primary culprit - it causes tree branches to sway into power lines, creating momentary interruptions or voltage drops. Even without direct contact, swaying lines can cause brief powe

Question 12

Why is my dryer taking forever to heat up?

Accepted Answer

Your dryer's slow heating is likely caused by a clogged lint filter, blocked exhaust vent, or failing heating element. These issues restrict airflow or reduce the dryer's ability to generate heat efficiently.

The most common culprit is lint buildup. Even if you clean the lint filter after every load, lint can accumulate in the exhaust vent system, creating a bottleneck that prevents hot, moist air from escaping. When airflow is restricted, your dryer has to work much harder to heat up and dry c

Question 13

Why is one outlet not working but others are fine?

Accepted Answer

A single outlet not working while others function normally is typically caused by a tripped GFCI outlet, a tripped circuit breaker, a loose wire connection, or a failed outlet. This is usually a straightforward fix, but requires some detective work to identify the root cause.

The most common culprit is a tripped GFCI outlet somewhere on the same circuit. GFCI outlets have "Test" and "Reset" buttons and are required within 1.5 meters of sinks, in bathrooms, garages, and outdoor locations under t

Question 14

Why does my dimmer switch buzz?

Accepted Answer

A buzzing dimmer switch is usually caused by incompatible bulbs, an overloaded dimmer, or loose wiring connections. Most buzzing issues can be resolved by switching to dimmable LED bulbs or upgrading to a higher-quality dimmer designed for your specific load.

The most common cause of dimmer buzzing is bulb incompatibility. Standard incandescent bulbs rarely cause buzzing, but many LED and CFL bulbs will buzz or hum when used with older dimmer switches. This happens because older dimmers were de

Question 15

Why does my circuit breaker keep tripping?

Accepted Answer

A circuit breaker that keeps tripping is doing its job - protecting your home from electrical overload, short circuits, or ground faults. The key is identifying why it's tripping so you can address the underlying issue safely.

Circuit breakers trip for three main reasons, each requiring different solutions. Overloaded circuits are the most common cause, especially in older Ottawa homes with 15-amp circuits trying to handle modern electrical demands. If you're running a space heater, microwave,

Question 16

Why do my lights turn on dim then get brighter?

Accepted Answer

Your lights are likely experiencing voltage drop or have loose connections, which can be a fire hazard that needs immediate professional attention. This dimming-then-brightening pattern indicates an electrical problem that could damage your fixtures or create dangerous conditions.

Voltage drop is the most common cause of this issue. When you first turn on a light, especially high-wattage fixtures or multiple lights at once, the electrical circuit experiences a temporary voltage reduction. This

Question 17

Why do I hear buzzing from my electrical panel?

Accepted Answer

A buzzing electrical panel is a warning sign that requires immediate attention from a licensed electrician. While some very faint humming can be normal, audible buzzing typically indicates loose connections, overloaded circuits, or failing components that pose fire and electrocution risks.

Common causes of panel buzzing include loose wire connections at breakers or the main lugs, which create electrical arcing and heat buildup. Overloaded circuits force breakers to work harder, generating vibra

Question 18

Why does my GFCI outlet keep tripping?

Accepted Answer

GFCI outlets trip when they detect even tiny electrical leaks (as little as 5 milliamps) between the hot and neutral wires, which could indicate dangerous ground faults that risk electrocution. This safety feature is working as designed, but frequent tripping usually means there's an underlying electrical issue that needs attention.

Common causes of GFCI tripping include moisture infiltration, worn appliances with internal ground faults, overloaded circuits, or wiring problems. In Ottawa's clim

Question 19

What causes the lights to flicker throughout the entire house?

Accepted Answer

Whole-house light flickering typically indicates a problem with your main electrical service, loose connections at the panel, or issues with Hydro Ottawa's supply line. This is usually more serious than flickering in just one room and often requires immediate professional attention.

Electrical Service Issues are the most common cause of house-wide flickering. Your main electrical service brings power from Hydro Ottawa's lines into your home's panel. If there are loose connections where the serv

Question 20

Why does only half my house have power?

Accepted Answer

Your home likely has a split electrical service where one of the two main power legs (120V lines) feeding your electrical panel has failed. This is a common issue that affects roughly half the circuits in your home while leaving the other half working normally.

Most homes in Ottawa receive 240V electrical service through two 120V "legs" or phases. Your electrical panel distributes these across alternating circuits - so circuit 1 might be on leg A, circuit 2 on leg B, circuit 3 back to leg A, an

Question 21

Why do my lights flicker at night but not during the day?

Accepted Answer

Lights flickering at night but not during the day typically indicates voltage fluctuations caused by increased electrical demand on your home's circuits or the utility grid. This pattern suggests your electrical system is being stressed when more lights and appliances are running simultaneously.

During the day, you're likely using fewer lights and different appliances than at night. When evening arrives, you turn on multiple lights throughout the house, plus evening appliances like TVs, compute

Question 22

Why do my lights dim when I use the microwave?

Accepted Answer

Your lights dimming when you use the microwave indicates your electrical system is struggling to handle the power demand. This is typically caused by an overloaded circuit, undersized wiring, or an aging electrical panel that can't properly distribute power throughout your home.

Microwaves are power-hungry appliances, typically drawing 1,000-1,500 watts (8-12 amps) when operating. When your microwave starts up, it creates a sudden demand for electricity. If your electrical system can't supply t

Troubleshooting