A blocked filter will reduce your dryer’s air circulation and extend the amount of time it takes to dry clothes, meaing more power consumption. — dpa Tumble dryers are a godsend for households with lots of laundry, but they can also be an expensive burden if you neglect them – the most reliable way to make them use more electricity and, ultimately, break down. To start, you need to get into the habit of cleaning it. Clothing detergents in combination with hard water can deposit a fine coating on the inside of a tumble dryer. Wiping the dryer’s interior surfaces with a damp cloth will remove any residue, household appliance experts will tell you. This should also include seals on the inside of the dryer’s door.