The short answer
A CT cabinet that is warm but audibly running is giving you the most useful clue there is: something is made cold and it is not reaching the food. That changes both the ranking and the first check compared with the brand-generic page.
What you observe
- 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.
- A sheet of frost on the evaporator or the rear wall — A stalled defrost: the ice itself is now blocking the air path.
- 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 CT
- Condenser coil choked or its fan stalled — Ranked first on the CT family: the coil is often a bare rear grid on this class of unit and needs clearance behind it to work at all. These codes share an evaporator arrangement and a defrost scheme, so a finding on one is worth assuming on the rest. 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.
- Evaporator or circulation fan not running — Second: a single small fan does all the work here, so it stops the cooling completely when it fails.
- Blocked airflow from a frosted evaporator — Third: a compact cabinet has a single small evaporator and almost no air reserve, so frost stops the cooling almost at once.
- Sealed-system or compressor fault — Fourth: 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.
- Door seals, door alignment and loading — Last: a glass door on this class of unit leaks readily once the seal takes a set.
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
Unplug the appliance or switch off its breaker before removing any panel. A capacitor can hold a charge after the power is off. Refrigerant work is licensed work, so leave the whole sealed system to a licensed technician, and call at once if you see oil at the compressor or smell burning.
When to call a technician
A refrigerator holds food safely at 40 °F (4 °C) or below and a freezer at 0 °F (−18 °C) or below; move perishables once the cabinet is above that. Cleaning a condenser and testing seals are owner work. Call as soon as the sealed system is suspected, because refrigerant work is licensed work.
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Lead Appliance Repair Technician · 12 years experience
Experienced technician with 12 years specializing in washing machine and dryer repairs across all major brands.
