Tumble dryer owners are being urged to check if their machine is faulty as 500,000 could pose a dangerous fire risk.
Whirlpool has published a full list of affected machines, which include Hotpoint, Indesit, Creda, Swan and Proline models built between 2004 and 2015.
Anyone with an affected dryer must unplug it immediately and stop using it.
All customers who own a machine on the list - which has not been modified or replaced already - can get a free replacement dryer. The customer will also get their faulty model picked up from their home for free.
Jeff Noel, vice president of Whirlpool, said: "The crucial message is please contact us immediately if you still own one of these tumble dryers and haven't already had it modified or replaced by us."
Whirlpool recently admitted to MPs that the number of faulty tumble dryers in homes across the country could be far higher than first thought.
Whirlpool Executives told the Business, Energy and Industrial Strategy Committee that the true number of affected machines could be 800,000 and it was working hard to modify those affected.
Which? director of advocacy Caroline Normand said: "Whirlpool has failed to trace hundreds of thousands of fire-risk tumble dryers that could still be in people's homes almost four years after this fault was first discovered, so we have serious doubts about the company's ability to get these machines out of circulation now.
"Given it has taken the threat of government action for Whirlpool to act on this vital matter of public safety, ministers must closely monitor this recall and definitively establish the safety of modified machines, which have also caught fire, if they are to be offered as replacements.
"If Whirlpool's approach is found wanting then the Secretary of State must step in and ensure that all potentially dangerous machines are immediately removed from people's homes."
Read about more product recalls, here .
How to check if you have a fire risk tumble dryer
People can instantly check if their dryer is one of those affected by calling 0800 151 0905 or by visiting whirlpool.co.uk/dryerrecall .
If yours has already been modified or replaced, you do not have to take any action.
