The short answer
The Criterion URBD family is one cabinet in two finishes, so a noise here can be read on its character alone — there is no second build to change what sits behind which panel. A warble that stops with the freezer door is the evaporator fan; a rattle that follows the compressor is the base; a hum you feel rather than hear is the cabinet, not the machine.
What you observe
- A warble from the freezer that stops when the door opens — The door switch cuts the evaporator fan, which identifies it outright.
- A dry rattle at the base that follows the compressor — Debris or a loose cover in the machine compartment.
- A low hum felt through the floor and the cabinetry — A resonance path: feet, levelling or contact with a unit.
- One soft knock when the compressor stops — Pressure equalising, which is normal on this cabinet.
- NEAR MISS — clatter then running water every few hours — An ice maker harvesting; the ice maker page covers the faults.
Causes, most likely first on this family
- Evaporator fan meeting frost — First, and on a single-mechanism family the door test confirms it rather than merely suggesting it.
- Debris or a loose cover at the base — Second. The machine compartment is open to the room and collects what the room has.
- Levelling and cabinet contact — Third, and the cheapest to test: hum that changes when you ease the cabinet out is not a component at all.
- Compressor mounts and tubing — Last. It arrives slowly and shows as a knock rather than a continuous noise.
Check in this order, and why
- Name the character of the sound first — Warble, rattle, hum or knock each point at a different place, and on this family that mapping is reliable.
- Open the freezer door while the noise runs — Stops means the evaporator fan; continues means it is elsewhere.
- Ease the cabinet out and rock it gently — A hum that changes is a path problem and the fix is free.
- Listen at the base with the compressor running — Left until here because it needs the cabinet moved.
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, and a fan is the one thing in the cabinet that restarts without warning. Keep fingers clear of the condenser fan blade at the base even with the doors open, and get a second person for any move: these cabinets are front-heavy once the doors swing.
Models in the URBD family
Reference| Model number | Family key |
|---|---|
| UR-BD596WX1-S | criterion:refrigerator:urbd |
| UR-BD596WX1-ST | criterion:refrigerator:urbd |
When to call a technician
Levelling, clearing the base and letting frost melt are owner work. Call a technician for any noise behind the freezer rear panel, and for a knock that arrives together with a cabinet that has stopped holding temperature. Call at once for a screech from the compressor or a smell of hot insulation.
Nearest pages of this class
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Experienced technician with 12 years specializing in washing machine and dryer repairs across all major brands.
