From the source:
Following Whirlpool’s acquisition of the Hotpoint/Indesit brands, Indesit Company has closely reviewed the safety of its product portfolio.
As part of this review we have identified a potential concern with two types of tumble dryers manufactured between April 2004 and September 2015. In some rare cases, excess fluff can come into contact with the heating element and present a risk of fire. The affected brands are:
Whirlpool branded tumble dryers are not affected by this safety notice.
We are activating an extensive consumer outreach and service action plan in order to provide our consumers with products that are updated to higher safety and quality standards. We will arrange a visit from an engineer, free of charge, to modify your appliance. The service call will take approximately one hour. The improvements we believe are necessary will further enhance the safety and quality of your dryer.
Trading Standards confirmed, following an internal review by independent experts, that the modification programme remains the most effective way of resolving this issue. As a result, we will continue with our efforts to provide consumers with a free of charge modification as quickly as possible. Trading Standards have also notified us that updated usage advice should be communicated to affected consumers. If your tumble dryer is affected by this issue then you should unplug it and do not use it until the modification has taken place.
Check your tumble dryer
Please use the ‘self service’ model checker to confirm if your appliance is affected and for next steps should your model require corrective action.
Affected tumble dryers