Switch and socket, but lights don't work

 

Faulty sockets, switches and bulbs are common problems. But have you ever found yourself in a situation where there is power in the switches and sockets and the bulbs are all in normal working order, but the lights do not come on?

The hard news is that faulty lights with functioning sockets and switches have no single solution. The good news is that there are several solutions to diagnose and solve the problem.

Problems with the basic wiring structure

The basic wiring structure can affect the operation of lights. Understanding the basic wiring structure problems that can affect lighting is a great way to diagnose the problem.

Neutral feedback effect

When electrical current flows through the socket and switches, but the bulb connected to these switches does not work, the voltage reading recorded by the switch could be neutral feedback.

This fault usually occurs in a nearby junction box. Elimination can be used to identify the specific location of the fault, which can occur in any circuit box. However, before starting the elimination process, make sure that the circuit breaker supplying the circuit has been switched off. This safety measure is necessary because a connection that can short-circuit a circuit can pose a fire hazard. Once the circuit breaker has tripped, open and carefully check each box for burnt or cracked insulation.

If an open neutral wire is found, make sure the wire nut used for the repair is large enough to cover the bare wire and secure it properly from inside the box. However, depending on what you find, you may need a professional electrician to conduct a thorough inspection of the entire electrical system, especially the electrical box.

Other causes of light faults

Safety note: Before any operation, always make sure that the circuit breaker of the switch, socket or lamp in question has been switched off! The other most common causes of light failure are listed below.

Loose wiring

Identify the suspect switch or fixture. Open and examine. If it is the right one, tighten the screw terminals down to the wires.

Cable

Cables can easily come loose from the socket terminal, plug terminal or internal wiring of the luminaire, whether pendant luminaires or plug-in lamps. Try adjusting their positioning to see if the light comes on, even if only temporarily. If so, it is time to repair/replace the cable.

Circuit cable

An interruption along the circuit path can potentially interrupt the power supply to the bulb. In this case, an electrician may be required.

Wiring of the luminaire

A problem in the wiring of the fixture could prevent the bulbs from accessing the power supply. Consider dismantling the fixture and assessing the internal wiring. If the wiring is burnt or exposed, replace it with new wiring. Also, make sure that the recommended wattage matches the wattage of the bulbs you are using to avoid damaging the wiring in the fixture.

Call the Emergency Electrician in Portsmouth. We are 24 hours available.