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Samsung RS50 fridge freezer noisy with ice buildup

SAMSUNG RS50 range · freestanding fridge freezer american · based on 29 similar repairs

Diagnosed by Sean McCauley · SMC Services · Last verified 10 May 2026

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Likely causes (Samsung freestanding fridge freezer american):

Problem summary

Your Samsung RS50 is making an intermittent loud noise that stops when you open the freezer door, and you've noticed ice building up inside the freezer compartment. This combination of symptoms is fairly common in this model range and usually points to a mechanical or electrical fault rather than a simple blockage.

Likely causes

Based on repair history for this fault pattern, the most common culprits are:

Freezer fan motor (most likely) — The fan that circulates cold air through the freezer can fail or wear out. A faulty fan motor often produces an intermittent grinding, buzzing, or rattling noise. When you open the door, the motor may stop temporarily, which is why the noise disappears. Without proper air circulation, frost can accumulate unevenly.

Main compressor or circulation motor — The motor responsible for cooling can develop mechanical wear. This typically produces a louder, more persistent rumble or grinding sound and will cause temperature regulation problems, leading to ice buildup.

Control PCB (circuit board) — Less commonly, a fault in the display or control board can cause erratic fan operation, resulting in noise and frost accumulation.

Why this needs an engineer

All three likely causes involve sealed refrigeration components, electrical motors, or circuit boards that require specialist tools and training to diagnose and repair safely. Opening the system yourself risks damaging the sealed refrigerant circuit, which is both hazardous and costly.

The ice buildup also suggests the appliance is struggling to maintain proper temperatures, which can worsen if the underlying fault isn't addressed quickly.

When to call SMC Services

Contact a qualified engineer if:

If you're in Northern Ireland, SMC Services can usually book a repair within 2-3 working days.

Step by step

  1. Intermittent loud grinding or buzzing noise. A sign the freezer fan motor or main compressor is wearing out or failing. Do not ignore this; it will likely worsen.
  2. Frost or ice visible on freezer walls or shelves. Indicates the cold air isn't circulating evenly, often caused by a faulty fan or motor. This can lead to food spoilage if left unchecked.
  3. Noise that stops when you open the door but returns when closed. Suggests a component is cycling on and off, or a pressure switch is triggering a shutdown. The fault is active but masked during door-open periods.
  4. Frost buildup getting worse despite turning up the thermostat. A sign the cooling or circulation system is not responding normally. Call an engineer to avoid food waste and further damage.

Frequently asked questions

Is it safe to keep using the fridge while it's noisy?
Short-term, yes, but monitor the freezer temperature. If food is defrosting or frost is spreading rapidly, switch it off and call an engineer, as continued use may worsen the fault and cause food spoilage.
Why does the noise stop when I open the door?
Many fridge fans and motors have a thermal or pressure switch that temporarily stops operation when the door opens. This is normal behaviour, but combined with ice buildup, it suggests the component isn't working properly when the door is closed.
Can I clear the ice myself?
You can remove surface ice carefully with a plastic scraper, but this won't fix the underlying cause. The ice will return until the fan, motor, or control fault is repaired by an engineer.
How much does a freezer fan replacement cost?
We can't quote over the phone without diagnosing the exact fault. Call for a quotation once an engineer has confirmed which component has failed.
What if it's still under warranty?
Check your paperwork or contact Samsung directly for warranty terms. Some faults are covered, but damage from ice or prolonged misuse may not be. An engineer can advise on options once they've assessed it.

Get this fixed

The parts most often needed for this repair — order direct:

Fits your RS50 Samsung Freezer Fan Motor Assy (DA97-06067J) £53.02 SMC20843 View part → Samsung Condenser Fan Motor Assy C/W Frame (DA97-07754D) £89.51 SMC05758 View part → Samsung Fan Blade (DE31-90051A) £1.52 SMC06011 View part →
Browse all spares

Prefer a pro? A local appliance engineer can carry out this repair. SMC's own repair service covers Northern Ireland only. The parts above ship UK-wide.

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About the data on this page

This page draws on 29 similar repairs from across 29 years of SMC Services records — over 116,000+ appliance repairs in total since 1997. The likely-cause percentages above are computed directly from the engineer reports we filed for this brand and fault, and we update them as new repairs come in.

SMC Services Ltd · Registered in Northern Ireland, Co. NI628091 · Domestic & Commercial Appliance Repairs.