Why does my oven trip the electrics?

The most common cause is a cracked or degraded heating element. As the element heats up, the crack opens and current leaks to the metal casing, triggering the RCD. This often gets worse over time.

Can I fix a faulty oven element myself?

Replacing an oven element is possible for a competent person if you can buy the correct part. However, if the oven is hardwired (no plug), any work on the connection requires a qualified electrician.

Could it be the cooker switch rather than the oven?

Yes. The cooker connection unit (the wall switch) can develop loose connections that overheat and trip the circuit. An electrician can check this quickly.

My oven only trips after 10 minutes — why?

This strongly suggests a heat-related fault, typically a cracked element. At low temperatures the element works fine, but as it heats and expands, the crack opens and creates an earth fault.

Caution

Updated 30 August 2026

Cooker Tripping The Electrics

Your oven or cooker is tripping the electrics every time you use it — or intermittently during cooking.

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What's happening?

Cookers and ovens in UK homes run on a dedicated circuit, typically protected by a 32A MCB. When the cooker trips the electrics, it usually means there is an earth fault in the oven (a damaged element, moisture in the unit, or degraded insulation) or a fault in the wiring between the consumer unit and the cooker connection unit. Because cookers draw high current, any fault is significant.

What usually causes it?

Oven heating element has cracked or failed, leaking current to earth
Moisture or food debris inside the oven causing a tracking fault to earth
Loose or corroded connection at the cooker connection unit or isolator
Cable between the consumer unit and cooker has been damaged
Fan oven motor is faulty and drawing excessive current

Is it dangerous?

A cooker that trips the electrics should not be used until the fault is found. While the RCD or MCB is doing its job protecting you, the underlying fault could worsen. A failed oven element can arc and cause burns or fire inside the oven. If you smell burning that is not food, or see sparks inside the oven, turn it off at the cooker isolator and do not use it.

Can I fix it myself?

You can check the consumer unit for a tripped MCB and try resetting it. Clean the inside of the oven thoroughly, as food debris and grease can cause tracking faults when heated. If cleaning does not resolve the issue, or the MCB trips as soon as the oven heats up, the oven or its wiring needs professional attention.

When should you call an electrician?

Call an electrician if the cooker trips the MCB or RCD repeatedly, if it only trips when the oven reaches a certain temperature (suggesting a failing element), or if you notice any damage to the cooker connection unit or isolator switch. An electrician can determine whether the fault is in the oven or the fixed wiring.