Gas leak risk with some Bosch and Neff gas hobs
A safety notice covers Bosch NGU4151DB and Neff T20S31N0 built-in gas hobs manufactured between January 2009 and October 2011. The installed gas connector can develop a fault that allows gas to escape. If you have one of these models, turn off the gas supply to the hob, stop using it, and contact BSH to arrange the free connector replacement – which must be carried out by a Gas Safe registered engineer.
A safety notice has been issued for specific Bosch and Neff built-in gas hobs. A potential fault with the installed gas connector means that, in extremely rare cases, gas can escape in an uncontrolled manner – creating a risk of explosion. Whitegoods Help recommends that anyone with an affected model stops using the hob immediately, isolates the gas supply, and arranges the free repair through BSH (the parent company of Bosch and Neff).
Affected Bosch and Neff gas hobs have a potential weakness in the installed gas connector. In certain circumstances this can allow gas to escape. BSH is offering every owner of an affected appliance a free replacement of the gas connector. Turn off the gas supply to the hob now and do not use it again until the repair has been completed by a Gas Safe registered engineer.
Which Bosch and Neff gas hob models are affected?
The safety notice covers two specific built-in gas hob models, both manufactured during the same production window. The model and serial numbers are printed on the rating plate, usually on the underside of the hob or in the documentation supplied with the appliance.
| Brand | Model number | Production period |
|---|---|---|
| Bosch | NGU4151DB | January 2009 – October 2011 |
| Neff | T20S31N0 | January 2009 – October 2011 |
The rating plate on a built-in gas hob is normally on the underside of the appliance, which makes it hard to see once installed. Check the original installation documentation, or our guide on how to find an appliance model number for the common label locations.
What should you do if your hob is affected?
Three steps, in this order. The first one matters even before you have confirmed whether your specific hob is on the list – the gas isolation is a free precaution while you check.
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Turn off the gas supply to the hob immediately. There should be an isolating valve on the gas pipe near the hob, usually inside an adjacent cupboard. Turn it perpendicular to the pipe to close it. Stop using the hob until the connector has been replaced.
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Check the model and production date. Confirm that your hob is one of the two affected models and that the production date falls within January 2009 to October 2011. BSH’s safety notice page includes a photograph of the affected hobs and a freephone contact number.
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Arrange the free gas connector replacement through BSH. Visit the manufacturer’s safety notice page for the current contact details and booking instructions: BSH gas hob safety notice. The replacement is free of charge regardless of guarantee status or how the hob was acquired.
Gas connector replacement must be carried out by a Gas Safe registered engineer. It is illegal in the UK for anyone else to work on a fixed gas appliance, and it would invalidate insurance even where the work was technically successful. Do not attempt to inspect or replace the connector yourself, and do not accept work from anyone who cannot show a current Gas Safe ID card.
What should you do if you smell gas?
A gas leak is an immediate emergency, separate from arranging the longer-term safety modification. The advice below applies whether or not your hob is part of this specific notice.
If you smell gas at any time, leave the property immediately. Do not operate any electrical switches, plugs, or sockets – including light switches or doorbells – as a spark can ignite gas in the air. Do not strike matches, light cigarettes, or use a phone inside the property. Open doors and windows on your way out if it is safe to do so, then call the National Gas Emergency Service on 0800 111 999 from a safe location.
These hobs were manufactured between 2009 and 2011 and many will still be installed in kitchens whose owners never saw the original safety notice. Built-in appliances are particularly easy to overlook because the rating plate is hidden once installed. If you know anyone with a Bosch or Neff gas hob from this period, share this notice with them.
Other current appliance safety notices
The BSH gas hob notice is one of several active manufacturer safety notices. If you own an older appliance from another brand, it is worth checking whether your model is affected by any current recall.
Frequently asked questions
Which Bosch and Neff gas hob models are affected by the safety notice?
Two specific models: the Bosch NGU4151DB and the Neff T20S31N0. Only units manufactured between January 2009 and October 2011 are part of the notice. Hobs with the same model numbers made outside that production window are not affected, but the rating plate is the definitive way to confirm.
What is the actual risk with these gas hobs?
The installed gas connector has a potential weakness that, in certain circumstances, can allow gas to escape in an uncontrolled manner. In extremely rare cases this could create a risk of explosion. The risk is real enough that BSH has issued a recall and is paying for free replacement of the connector on every affected appliance.
Can I keep using the hob until the engineer arrives?
No. If your hob is one of the affected models, turn off the gas supply at the isolating valve and do not use it again until the connector has been replaced. The risk is the reason the recall exists – it is not a precautionary inspection. The repair is normally booked promptly but if the wait is long, leave the gas isolated rather than using the hob in the meantime.
Is the BSH gas hob repair free of charge?
Yes. Manufacturer safety repairs are free regardless of how old the appliance is, whether the original guarantee has expired, or whether you bought the hob new or second-hand. You do not need a receipt or proof of purchase to claim the repair.
Who can carry out the gas connector replacement?
Only a Gas Safe registered engineer is legally permitted to work on a fixed gas appliance in the UK. BSH will arrange a qualified engineer as part of the free repair. Do not attempt to inspect or replace the connector yourself, and do not accept work from anyone who cannot show a current Gas Safe ID card – this protects both your safety and your insurance.
What should I do if I smell gas?
Leave the property immediately. Do not operate any electrical switches, plugs, sockets, or doorbells – a spark can ignite gas in the air. Do not light matches or use a phone inside. Open doors and windows on your way out if it is safe to do so, then call the National Gas Emergency Service on 0800 111 999 from a safe location outside the property.
1 Comment
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I was really surprised as to the potential of Gas leaks as the above products have always had a reputation for being the best when they were produced in Germany. Sadly we don’t know the providence of where goods are being produced now days which might account for failing standards and inferior products.
I’ve got a white goods that are 2O years old and still going strong. Thanks for alerting us to the potential problems as I was considering Neff