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Fridge freezer

Fridge not cold enough? 4 likely causes

A fridge that is too warm may have a blocked air flow, a faulty thermostat, a failing fan or a defrost fault.

Symptom: Food spoils early, fridge feels warm · Typical cost: £90–£230.

Always switch off and unplug the appliance before inspecting it. Never work on gas appliances or fixed electrical wiring yourself — call a Gas Safe registered engineer or a qualified electrician.

Likely causes, most common first

  1. 1

    Overpacked or blocked vents

    DIY: easy

    Air can’t circulate.

    The fix:Clear the vents and don’t overfill.

  2. 2

    Faulty thermostat or fan

    DIY: moderate

    Cold air isn’t moved.

    The fix:Replace the fan or thermostat.

  3. 3

    Defrost fault

    DIY: moderate

    Ice blocks the evaporator.

    The fix:Replace defrost parts.

  4. 4

    Gas leak / compressor fault

    Engineer job

    The sealed system isn’t cooling.

    The fix:Replacement is usually economical.

When to call an engineer

  • Compressor not running
  • Food above 5°C
  • You are not comfortable working on the appliance, or the fix involves electrics or gas.

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Frequently asked questions

How much does it cost to fix a fridge freezer problem like this?

£90–£230.

Is it safe to keep using it?

If you can see leaks, smell burning, or the appliance is tripping the electrics, stop using it and unplug it. For minor faults without those signs it is usually safe to leave it off until you can diagnose it. Always switch off and unplug the appliance before inspecting it. Never work on gas appliances or fixed electrical wiring yourself — call a Gas Safe registered engineer or a qualified electrician.