Smart appliances could be rendered obsolete too soon because manufacturers are failing to be clear about how long they will provide vital software updates, Which? has claimed.

Kitchen white goods such as fridges, dishwashers, washing machines and tumble dryers with smart capabilities allow owners to control certain features remotely from a smartphone or send alerts to engineers when a fault is detected.

The consumer group estimates these types of appliances should last 10-11 years with or without smart technology.

But it is concerned about the lack of clarity from manufacturers on the length of time smart features are supported with software updates.

Lack of updates could leave users unable to access some smart functionalities, as well as data abandoned on their home network, a situation that could result in expensive machines that still work being replaced before their time and even ending up in landfill because they are not supported or secure.

When approached by Which?, the majority of manufacturers claimed they would offer updates for what they termed “the life of the product”.

Until manufacturers are clear and upfront about how long they will support these products for, consumers could be better off avoiding smart appliances that might turn ‘dumb’ after only a few years and stick to more reliable and significantly cheaper non-smart alternatives

Samsung said security updates are guaranteed for up to two years in accordance with the product warranty period but stressed that “it is not limited to two years”.

Hoover/Candy claimed an appliance’s lifetime depends on factors like regularity of use and whether the appliance is loaded or maintained correctly.

BSH – which makes Bosch, Neff and Siemens appliances – said it is difficult to provide a specific length of time for updates across its smart products, but reiterated that it would provide updates for the lifetime of the product.

Whirlpool stated that it does not have a timeframe for updates.

LG said that if issues are detected, updates can be rolled out to consumers, but it did not confirm any timeframes for the duration of support.

Beko said “a maximum of 10 years”.

Miele was the only manufacturer to offer an definitive answer, according to Which?, saying that from the outset smart appliances would be supported with security updates for 10 years.

“Being able to check the contents of your fridge from your smartphone or having your dishwasher order itself more salt when it starts running low may seem appealing, but with some appliances costing up to an extra £900, these smart features don’t come cheap,” said Natalie Hitchins, Which? head of home products and services.

“Until manufacturers are clear and upfront about how long they will support these products for, consumers could be better off avoiding smart appliances that might turn ‘dumb’ after only a few years and stick to more reliable and significantly cheaper non-smart alternatives.”

The UK Government has set out plans for legislation requiring smart appliances to meet certain security standards.

These proposals would oblige manufacturers to state the minimum length of time the device will receive security updates.

Samsung responded, saying it would provide software updates as needed and not limited to warranty periods.

“Samsung takes the security of its products very seriously and our products and services are designed with security in mind,” a spokesman said.

“We continuously monitor and respond to emerging software vulnerabilities by promptly providing a security patch for identified threats.

“Security updates for Samsung smart appliances are available to all customers in the UK not only for the two-year warranty period, but beyond the aforementioned period for critical security vulnerabilities.”