The short answer
When the YCD family stops cooling while the compressor still runs, the fault is usually that cold air is not moving rather than that cold is not being made. This page ranks the causes for that build; the brand-generic article ranks them for the brand as a whole.
What you observe
- A sheet of frost on the evaporator or the rear wall — A stalled defrost: the ice itself is now blocking the air path.
- Freezer side still cold, fresh-food side warm — Near-diagnostic on a shared-evaporator cabinet, and it points at the air path rather than the system.
- The unit never cycles off — A machine that cannot reach its target runs continuously and works its compressor far harder than normal.
- Cabinet warm while the unit is clearly running — Cold is being made somewhere and is not arriving, which is an airflow question.
- NEAR MISS - silent and not cold — That is a no-power or start-relay fault and belongs on a different page.
Causes, most likely first on YCD
- Evaporator or circulation fan not running — Ranked first on the YCD family: a single small fan does all the work here, so it stops the cooling completely when it fails. The table above is one platform, so a defrost or airflow weakness appears on every code in it rather than on one variant. This moves above blocked airflow from a frosted evaporator, which leads the brand-generic order, because this family is a single build with fixed access points.
- Blocked airflow from a frosted evaporator — Second: a compact cabinet has a single small evaporator and almost no air reserve, so frost stops the cooling almost at once.
- Door seals, door alignment and loading — Third: the free check, and a genuine finding on any cabinet that has started running without stopping: a seal that no longer meets loads the machine continuously.
- Condenser coil choked or its fan stalled — Fourth: the coil is often a bare rear grid on this class of unit and needs clearance behind it to work at all.
- Sealed-system or compressor fault — Last: last, and the one that decides the fate of the appliance rather than the repair; refrigerant work is licensed work and the diagnosis is not an owner diagnosis.
Check in this order, and why
- Listen at the cabinet for the circulation fan — It separates the two likeliest causes before any panel comes off.
- Look behind the rear panel for a frost sheet — A solid sheet rather than a light dusting confirms a defrost fault.
- Check nothing is packed against the rear vents — Blocked vents give exactly the same symptom as a failed fan and cost nothing to rule out.
- Test each door seal with a sheet of paper — Last, because it explains a struggling cabinet rather than a warm one.
Before you open anything
Safety
Power off before opening anything, and clear ice by letting it melt. A blade against a cold surface punctures an evaporator and ends the appliance on the spot.
When to call a technician
Call once the fan runs, the coil is clean and the seals are good but the cabinet is still warm: what is left is the defrost circuit or the sealed system, and neither is owner work on this family.
Other YCD pages
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