The short answer
On a Twine refrigerator, a refrigerator makes water on purpose — every defrost cycle produces it — so a leak is almost always a drainage problem rather than a plumbing one. Where the water appears tells you which: inside under the crispers means the drain, on the floor at the front means the drain has overflowed, and behind the cabinet means the supply. A small wine cabinet works against the room rather than against a load, so room temperature and door discipline decide almost everything below.
What you are actually seeing
- A slab of ice at the back wall of the freezer section — The drain has frozen rather than merely silted up.
- Droplets on the inside of the cabinet after each opening — Condensation from room air, not a leak.
- Water standing under the crisper drawers — Classic blocked defrost drain: the melt water has nowhere to go.
- NEAR MISS — water plus a cabinet that is warming — Deal with cooling first: a failed defrost produces both at once.
Causes, most likely first on this refrigerator
- Condensation rather than a leak — humid air meeting cold surfaces — Ranked first on Twine: a wine cabinet is managing humidity deliberately, so a failed seal shows as water long before it shows as a temperature fault. On this one, remember that a small beverage cabinet works against the room, so the room is half the diagnosis.
- Defrost drain blocked or frozen, so melt water backs up inside the cabinet — Second: the drain is the only part of this system that is designed to carry water, so it is the first place to look when water is somewhere else.
- A slow leak at the supply connection — Third: it is the one cause here that produces water on the floor with the cabinet perfectly dry inside.
- Filter head or filter seal leaking — Last, and that is the point of the order: it usually starts right after a filter change, which makes the timing the diagnosis.
Check in this order, and why
- First — test the seal with a strip of paper all the way round the door — Free movement anywhere means room air is walking in at that point.
- Then — look for water or ice under the crisper drawers and at the back of the compartment — Water pooling inside the cabinet is a drain fault until proven otherwise, and nothing else looks like it.
- Third — pull the cabinet out and look at the connection and the line with a torch — A dry interior with a wet floor points behind the unit, and looking takes two minutes.
- Only then — look at the filter housing and note whether the leak began after a filter change — Timing is the whole diagnosis here, which is why it comes after everything above it.
What an owner can safely check
- Test the gasket, then clean it and check the door closes square — Shut the door on a strip of paper at several points. Wash the gasket with warm soapy water; a stiff, dirty seal does not follow the cabinet.
Tools: paper, clothAbout 15 min
- Inspect the supply connection and dry it, then check again an hour later — Dry everything, put a sheet of paper under the joint and come back. A wet sheet names the joint without any tools.
Tools: torch, paper, clothAbout 20 min
- STOP before testing anything electrical with the power on — The checks above are all cold checks. Anything that needs power applied is where an owner check ends.
Before you open anything
Safety
Water and electricity share this space. Unplug the cabinet or switch its breaker off before you mop up anything under or behind it, and before any panel comes off. Do not run an extension lead across a wet floor to keep the unit going.
When it stops being an owner job
Call when the drain will not clear with warm water, when the leak is behind the cabinet at a plumbing joint you cannot reach or re-make, or when water keeps arriving after the ice maker has been off for a day. Call immediately if water is reaching an electrical connection, if the floor covering is lifting, or if there is water plus a rise in cabinet temperature — that pair means the defrost system, and it will not fix itself.
Nearest pages of this class
What this page does not cover
This page is written for the Twine refrigerator as a class, not for one family or one model line. Where a family-specific page exists for your unit it is linked above and it is the more specific answer. Deliberately not here: part numbers, wiring colours, torque figures and any measured value, all of which differ by family.
Lead Appliance Repair Technician · 12 years experience
Experienced technician with 12 years specializing in washing machine and dryer repairs across all major brands.
