Fridge or freezer faults common to all brands
A great many fridges and freezers in British kitchens have no display and no codes — they have lights, or nothing at all. These pages cover what those lights mean, why a lit fridge might not be cooling, and the two situations where the right answer is to stop.
This is not LG, Samsung or Hotpoint's code table. Demo-mode strings and exit sequences differ by make, and a power cycle that clears LG's shop mode leaves many Samsung ranges still in Cooling Off. If you have a digital display and a string that looks like a code, go to that brand. If you have three lights and no characters, you are in the right place.
Green, amber and red on a freezer are a convention two unrelated manufacturers publish in almost the same words: power, fast freeze, high temperature. A red light after a big shop or a door left open is the appliance telling you something true; judge it the next morning. Stop and ventilate if you can smell gas near the cabinet — modern R600a is isobutane, which is flammable and is not an F-gas, so the person to call is a competent refrigeration engineer, not an F-Gas ticket for its own sake and not a gas fitter. Do not chip ice with anything metal.
Named-brand hubs in this category: LG, Hotpoint and Samsung. Those pages carry the manufacturer’s own table; this one does not replace them.
How these displays appear
Three lights on a freezer follow a convention that two unrelated manufacturers publish in almost identical words: green is power, amber is fast freeze, red is a high temperature warning. On appliances with a digital display, the strings that look most like catastrophic faults are usually the least serious — a shop-floor demo mode, or a temperature alarm telling you something true about a door that was left open.
What a reset actually does
The general reset for a fridge is to unplug it, wait, and plug it back in. Samsung UK publish ten seconds as the minimum for a reboot to happen at all, and LG publish about five minutes before plugging back in after a fan or cooling code. Two important exceptions. A power cycle clears LG’s shop mode, but on many Samsung ranges it does not clear Cooling Off or Demo Mode — Samsung publish a per-model table — so if a Samsung comes back still not cooling you have not proved anything. And after any power interruption, a fridge needs hours rather than minutes to recover temperature, so judge it the next morning rather than in ten minutes. If the appliance has just been moved, the manufacturers’ figures differ and are worth following: LG say an appliance carried upright can be plugged in once it has stopped vibrating, but one laid on its side needs at least two hours upright first; Beko say at least four hours upright and unplugged after any move, so the compressor oil settles.
Most common shared fridges and freezers faults
The fridge or freezer displays people look up most, whichever badge is on the appliance.
- Demo modeGet it checkedA shop-floor setting that lights the display and disables cooling. It is the commonest reason a fridge that looks perfectly healthy is quietly not cold.
- Red light on the freezerGet it checkedA high temperature warning. Two manufacturers publish the same three-light scheme independently: green is power, amber is fast freeze, red is the warning.
- Ice building upStop — call an engineerReal fault, and one where the obvious remedy is the dangerous one. Never chip ice out with anything metal — the pipework carrying flammable refrigerant runs through the walls you would be hitting.
- Smell of gas near the fridgeStop — call an engineerModern fridges are charged with flammable isobutane. Ventilate, keep flames and switches away, and do not use the appliance again until it has been checked.
Every shared fridge or freezer fault
5 published shared pages. Filtering happens in the page — every one is in the HTML.
Showing 5 of 5 codes
Fridges and freezers these pages cover
These pages apply across types. The split is by how the appliance is built, not by badge.
Guides that help with fridges and freezers faults
How to reset a fridge freezer, and what a reset cannot fix
Unplug and wait works on some fridges and proves nothing on others. The published waits, the demo-mode trap that survives a power cycle, and when to stop.Read the guideFridge door seals, ice build-up and noises: fix or call?
The three things a fridge does when something is wrong, which of them you can put right, and the one rule that keeps a defrost from becoming a gas leak.Read the guide