Lighting

Lights flicker

Flickering can come from the bulb, light fixture, switch, connections or supply. If it appears on several circuits, the installation should be checked.

Possible causes

  • LED bulb incompatible with dimmer;
  • bad contact in socket or switch;
  • loose connection in a junction box;
  • voltage variations;
  • neutral or common connection issue.

What to observe

  • one bulb or the whole house flickers;
  • it appears when a large consumer starts;
  • it is constant or intermittent;
  • switch makes noise, smells or heats.

When to request service

If flickering appears on several circuits, if there is burnt smell or if a switch/socket heats, request electrical inspection.