The short answer
Start with frost that has melted and found no way out: on a Comfee compact upright freezer it accounts for more of these than anything else, and a door seal drawing humid air in is the next thing to rule out. A Comfee upright is bought because it fits where a chest will not - a utility room, a hallway, a small kitchen - and everything about its behaviour follows from being tall, narrow and opened from the front. The checks below are ordered to match, and the first of them needs no tools at all.
What you observe
- Water running from under the door — An upright drains forward once anything inside it melts.
- Water standing in the bottom of the cabinet — Meltwater that could not get out, which on a chest is exactly where it collects.
- NEAR MISS - water with a soft load — Then the cabinet has a temperature fault and the water is the evidence. Read the cooling page for this freezer instead.
Causes, most likely first on this brand
- Meltwater from frost that has thawed — The likeliest cause on this brand: everything in the cabinet that looks like ice was once humidity in the room, and any interruption - a defrost, a power cut, a lid left open - turns a rind of frost into more water than the cabinet was built to contain.
- A door seal drawing humid air in — Next most likely: on an upright the door is the whole front of the cabinet, so a seal that is not touching feeds humidity in continuously and frost forms where it can later run out.
- Condensation on the outside of the cabinet — Third on the list: a cold shell in humid air sweats exactly as a cold glass does, and what beads on the lid and the sides runs down to the floor and reads as a leak.
Check in this order, and why
- Empty the cabinet and find where the water is collecting — It separates water that melted inside from water arriving from somewhere else.
- Test the door seal all the way round — On an upright this is where the humidity gets in and where the water comes out.
- Decide first whether the water is on the cabinet or in it — Sweating and leaking look identical on the floor and have nothing else in common.
What an owner can safely check
- Take the load out, dry the bottom of the cabinet and look for ice under it — You cannot judge where water is coming from through a layer of frozen load.
Tools: coolers, towelsAbout 45 min
- Close the lid or door on a slip of paper at several points — Where it pulls free, humid air is arriving and making the water you are mopping.
Tools: a sheet of paperAbout 10 min
- Note whether the water appears on humid days only — A cabinet that beads in August and stays dry in March is telling you about the room, not about itself.
About 5 min
- STOP HERE if the next step means the rear panel or a meter — Behind it are the evaporator and live terminals, and that is where owner checks end.
Before you open anything
Safety
Unplug the freezer before defrosting it or reaching behind it - a capacitor can hold a charge after the power is off. Never chip at the interior: on an upright the evaporator is often inside the shelves themselves, and a punctured shelf ends the cabinet rather than starting a repair.
When to call a technician
Call when the door seals at every point, the cabinet is level and dry inside, and water still runs out from under the door. Call sooner if the cabinet frosts up heavily again within weeks of a defrost, because that says the seal is letting humid air in continuously.
Nearest pages of this class
What this page does not cover
This page covers compact upright freezers as a class rather than one model line. Shelf-evaporator layouts, door seals and drain arrangements differ by family, and where a family- or model-specific page exists for your unit it is linked below. Not here: capacity figures, gasket profiles and part identifiers.
Lead Appliance Repair Technician · 12 years experience
Experienced technician with 12 years specializing in washing machine and dryer repairs across all major brands.
