Experts have warned people to check behind their fridges regularly if they want to reduce their annual energy bills.
It's easy to assume that leaving the door open or the amount of food inside will affect how much it costs to run your fridge.
But what you may not realise, is that what lurks behind can also affect how much you're paying to keep it running.
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Energy experts at Uswitch recommend cleaning behind your fridge freezer regularly to keep it working properly.
Dust on the condenser coils can prevent your appliance from cooling as quickly as it should, meaning it needs to work extra hard to keep your food cold.
As well as cleaning your fridge, you should make sure the freezer compartment is defrosted frequently so there isn't a build up of ice.
Again, a big build up of ice puts more pressure on your appliance.
A spokesperson from Uswitch told The Mirror: "Clean behind your fridge and freezer to help keep them cool and working as efficiently as possible.
"Running a modern fridge for a year costs just over £28. So if its efficiency is reduced by 10%, it could add £2.80 to your annual bill."
You should also avoid leaving the fridge door open, as this is a waste of energy too and makes the appliance work harder.
For every minute that a fridge door is left open, it takes roughly ten minutes to cool back down.
Many households are looking for ways to lower their energy bills after the regulator Ofgem confirmed it was hiking its price cap by an unprecedented £700.
For those on a default tariff who pay by direct debit, the price cap has gone up from £1,277 to £1,971 - a rise of £693.
Prepayment customers have seen a bigger jump, with their price cap going up by £708, from £1,309 to £2,017.
The price cap limits how much households can be charged for each unit of gas and electricity they use.
