The short answer
On the Criterion URBCD refrigerator a cabinet that runs without cooling is almost always an airflow fault rather than a loss of refrigerant. This designation is worth checking twice: it appears on the rating plate of cabinets badged under other Criterion names as well, so an owner whose door badge reads differently can still be on the right page. Once the designation matches, the fastest route in is what changed recently, because this platform is more often disturbed than worn out.
What you observe
- Fresh-food compartment warm while the freezer stays frozen — Air is not reaching the upper compartment.
- Compressor running continuously and never satisfying — The machine working against a restriction it cannot overcome.
- Heavy frost across the freezer rear panel — Frost that has closed the air path over the evaporator.
- Both compartments warming at the same rate — Sealed-system territory rather than airflow.
- NEAR MISS — no hum, no light, nothing running — That is power or control, and it belongs on the page for a cabinet that will not start.
Causes, most likely first on this family
- Installation and clearance since the last change — Ranked first on this platform, above where the brand-generic page puts it: these cabinets are commonly re-sited, and a machine compartment starved of room cannot reject heat however healthy it is.
- Frost closing the evaporator after a stalled defrost — Second, and the top mechanical cause. It develops over weeks and is noticed as warmth, not as ice.
- Evaporator fan not running — Third. Identical symptoms from the front; silence behind the freezer panel is what separates it.
- Condenser coil and fan blocked — Fourth, and worst in hot weather or in an enclosed cabinet run.
- Sealed-system or compressor fault — Last, least common, and not owner-diagnosable.
Check in this order, and why
- Confirm the designation on the rating plate — This family shares its designation with cabinets badged differently, so confirming it first is what makes the rest of this page apply to your unit.
- Ask what changed in the last month — Siting, a refit, a coil clean or a panel left off explain more cooling calls on this platform than any component does.
- Compare the two compartments — Splits airflow from refrigerant in a minute.
- Hold the freezer door switch in and listen for air — Silence is the fan; airflow plus heavy frost is the defrost circuit.
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. A rear evaporator panel comes off over live tubing and a defrost heater, so let ice melt rather than forcing the panel. Never open the sealed system or vent refrigerant — that is licensed work, and oil outside the tubing means the system is already open.
Models in the URBCD family
Reference| Model number | Family key |
|---|---|
| UR-BCD572WX-SQ(B) | criterion:refrigerator:urbcd |
| UR-BCD830WE(Z)-ST | criterion:refrigerator:urbcd |
When to call a technician
Restoring clearance, cleaning a condenser and manually defrosting are owner work. Call a technician when the evaporator fan is silent behind the panel, when frost returns within days of a defrost, or when both compartments warm together — the last is licensed work. Call at once if oil is visible outside the tubing.
Nearest pages of this class
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