Hob displays error message E4 / E401 / E402 / E403 / E421 / E422 / E423 / E431 / E432 / E433

Issue

• Hob displays one of the following error messages: E4 / E401 / E402 / E403 / E421 / E422 / E423 / E431 / E432 / E433.

Applies to

• induction hob
• cooker with induction hob

Resolution

These error codes are an indicator that overheating protection is in operation, this may be due to an installation issue or using unsuitable cookware. If the below steps do not resolve the issue, we recommend requesting a visit from a service engineer.

1. Switch the hob off and allow it to cool by removing any cookware. The error code should disappear once the hob cools down. (Residual heat indicator "H" can stay for a while).

2. Please ensure the cookware you are using is suitable for induction. Induction-safe cookware should be iron or iron-based with a flat base for good conduction.

You can check if a pot or pan works on induction by placing a kitchen magnet on its bottom:

• If the magnet sticks firmly → Induction compatible.
• If it doesn’t stick → Not compatible.

Refer to the article: What cookware is suitable for cooking zones with induction heating?

3. Disconnect the appliance from power for at least 30 seconds. 

Reconnect it and switch it back on.

For built-in appliances, there’s no need to physically unplug or disconnect the cable because they are hardwired or integrated into the kitchen setup. Instead, you can reset or cut power using the dedicated safety switch or circuit breaker in your electrical panel.

Energy-saving tips when using your oven and hob

With energy prices soaring, it’s never been a better time to rethink how you use the appliances in your home to save energy and money. Besides helping your household budget, it will also benefit the planet, reducing CO2 emissions. Here are some helpful tips on how to reduce energy when using your oven and hob

• Don’t open the oven to check the cooking process. You will lose heat and humidity and the food will take longer to cook, consuming more energy
• Cook at a lower temperature. It might take longer, but reduces energy consumption by 20% and gives you better food taste and quality
• Take unused accessories out of the oven when cooking – they just consume more energy
• Put your saucepans in the centre of the cooking zone before turning it on. Put the smallest cookware on the smaller zones
• When possible, finish cooking on the hob with the residual heat

See other helpful tips to save energy and money

Efficient energy-saving tips for your home to lower your energy costs

If you found the following information helpful, please give us a thumbs up below. If this information does not resolve your question, all constructive feedback is welcome.