Sometimes our machines experience lint build-up, which can block the channels that allow hot air in. We service our machines on a regular basis, but sometimes issues can occur between the times our engineers check in. Our first priority is making sure you recieve a refund for your time using the dryer. We advise you to contact customer service via help.megroup.uk to apply fora refund. You'll need the location of the machine -specifically the machine number. Our team will issue a refund and report the machine to our engineers for servicing.