What you are actually seeing
- A hard slab of ice on the rear wall of a frost-free upright
- Frost concentrated near one part of the door frame
- Ice forming on packages rather than on the walls
- Not this fault: Frost plus a cabinet that is not cold
Ranked causes on a Conservator freezer
- Defrost drain blocked so melt water refreezes — Ranked here because: these machines are commonly installed by the owner or the delivering dealer, and levelling and venting errors are the most frequent finding
- Cabinet not level so door or drain does not work — Ranked here because: levelling is upstream of the door, the drain and the vibration path all at once
- Cabinet in a humid room or an unheated space — Ranked here because: the room the machine lives in is part of the machine as far as its control is concerned
- Door or lid seal letting humid air in — Ranked here because: the gasket is the cheapest thing on the machine to get wrong and the easiest to confirm
- Door opened often, or warm or uncovered food loaded — Ranked here because: a simple machine gives the owner more ways to load and dose it wrong, and those show up as faults
- Manual cabinet overdue a defrost — Ranked here because: frost management on this kind of cabinet is partly an owner responsibility rather than wholly automatic
What to check, and in what order
- Test the seal with a paper strip at eight points around the door or lid
- Level the cabinet and check that the door falls shut from an inch open
- Empty the cabinet, unplug it, let it defrost fully and dry it before restarting
- Find the drain in the base of the cabinet and check that it is clear
Steps you can safely do yourself
- Empty the cabinet, unplug it, let it defrost fully and dry it before restarting — Tools: towels, coolers for the contents — Estimated time: most of a day
- Find the drain in the base of the cabinet and check that it is clear — Tools: warm water, turkey baster — Estimated time: about a quarter of an hour
- Move packages clear of the rear wall and any vents on a frost-free upright — Tools: none — Estimated time: about ten minutes
- Note where the frost is: on the walls, on the rear evaporator, near the door, or on the floor of the cabinet — Tools: flashlight — Estimated time: a few minutes
- Test the seal with a paper strip at eight points around the door or lid — Tools: sheet of paper — Estimated time: a few minutes
Safety
Safety
unplug-before-service freezer-0f
When to call a technician
frost returns within days of a full defrost on a frost-free cabinet, which is a defrost circuit fault the drain cannot be cleared from inside the cabinet the gasket needs replacing rather than cleaning
Nearest pages
What this page does not cover
Not this fault: the family pages for the laundry, refrigeration and cooking lines Not this fault: model-specific pages once the model and serial plate is read
Links: - [Common Conservator Freezer Problems](/blog/conservator-freezer-problems) - [Common Conservator Dishwasher Problems](/blog/conservator-dishwasher-problems) - [Common Conservator Dryer Problems](/blog/conservator-dryer-problems) - [Conservator Freezer: Abnormal Noise or Vibration](/blog/conservator-freezer-abnormal-noise)
Lead Appliance Repair Technician · 12 years experience
Experienced technician with 12 years specializing in washing machine and dryer repairs across all major brands.
