ITV News has learned that almost 7,000 faulty cookers made by Beko have still not been traced.
All of the affected models were manufactured prior to January 2009 and carry the logo of either Beko, Leisure or Flavel.
Beko has warned that using the grill on these models with the door closed can produce dangerous levels of carbon monoxide, which can be fatal.
How do I check if I own one of these products?
The affected models carry one of the logos seen below and can be found on the rating panel at the bottom edge of the cooker just inside the oven door.
You can also find the model number on this panel. Check whether your model matches any of those displayed below:
What do I need to do if I own this product?
If you own one of the models listed above, you should always leave the door open when using the grill.
According to Beko, closing the door while the grill is on restricts "the air supply to the grill burner... which can cause extremely dangerous levels of carbon monoxide to be produced which can pose a very serious risk to health".
You are advised to contact Beko to organise a free modification to make the cooker safe.
Make sure you have your full model number and serial number to hand (these can be found on the rating panel illustrated above).
UK freephone 0800 917 2018
Ireland freephone 1800 25 29 25
Cookers are not the only products manufactured by Beko that are believed to have faults. The company has also issued recalls for certain condenser tumble dryers and fridge freezers.
There is more information, including instruction manuals for the above models, on the Beko website.
Watch Chris Choi's report in full below.