The short answer
On a Tillreda 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 compact cabinet has a small evaporator and very little thermal mass, so it shows a fault within hours rather than over days.
What you are actually seeing
- Water behind the cabinet only — That is plumbing, not drainage, and it points at the supply connection.
- A slab of ice at the back wall of the freezer section — The drain has frozen rather than merely silted up.
- Ice building under the ice bin — Fill water is overshooting the mould.
- NEAR MISS — the leak only appears when the dishwasher or the sink runs — Then the water is not coming from the refrigerator at all. Check what shares that floor.
Causes, most likely first on this refrigerator
- Defrost drain blocked or frozen, so melt water backs up inside the cabinet — Ranked first on Tillreda: a compact drain path is short but very narrow, and a single piece of debris closes it. On this one, remember that there is almost no thermal mass here, so a fault shows up within hours of starting.
- Water escaping where the filter cartridge meets its housing — Second: it usually starts right after a filter change, which makes the timing the diagnosis.
- Warm damp air entering past the door seal and condensing inside — Third: it explains water with no plumbing involved, and a paper test settles it in ten minutes.
- Water arriving at the ice maker faster than the mould can take it — Bottom of the list, which is the useful part: it produces a sheet of ice under the bin and then water on the floor when that sheet melts, which is a very specific signature.
Check in this order, and why
- First — 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.
- Then — look at the filter housing and note whether the leak began after a filter change — Timing is the whole diagnosis here.
- Third — 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.
- Only then — look for a slab of ice under or behind the ice bin — Ice where ice should not be tells you the fill is overshooting rather than that the cabinet is leaking, which is why it comes after everything above it.
What an owner can safely check
- Find the drain outlet at the back of the compartment and flush it — Take the drawers out, find the trough and its outlet, and ease warm water down it until it runs away freely.
Tools: warm water, turkey baster or syringeAbout 25 min
- 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
- 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 Tillreda 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.
