Hum, knock, rattle or unusually loud operation — refrigerator too noisy? Light compressor hum on startup is normal, but suddenly louder noise, metallic knocking or constant whine needs diagnosis.
Common causes: compressor wear, No Frost fan, refrigerant issues, vibration from uneven floor. Refrigerator repair — from 200,000 UZS, visit usually within 1 hour, 8:00–22:00. +998 99 411 47 57, **@Aleks_Pro_servis**.
Summary
The essentials in a minute
In detail
Normal vs abnormal noise
Compressor hum for 30–60 seconds then off — normal cycle. Relay click on start — OK.
Warning signs: metallic knocking, fan whine, constant hum (compressor never stops), hissing — possible refrigerant leak.
Cause 1: compressor and start relay
Worn compressor runs louder, may knock. Bad start relay (PZU) — click, start attempt, silence, repeat.
Low freon makes the compressor run longer and louder — not "old fridge normal."
Relay replacement from ~200,000 UZS, compressor from ~500,000 UZS. Part of refrigerator repair.
Cause 2: No Frost fan
In No Frost models a fan blows over the evaporator. Ice, debris or worn bearings — grinding, whistle or knock.
Fan replacement from ~180,000 UZS, cleaning from 200,000 UZS.
Cause 3: vibration and installation
Uneven floor — cabinet resonance. No rear clearance — compressor overheats and gets louder.
Level the feet and pull 5–10 cm from the wall — often helps.
Cause 4: refrigerant and expansion valve
Quiet hissing in the freezer can be normal. Loud hiss with less cooling — possible leak.
Refrigerant leak needs detection and recharge from ~250,000 UZS. Don't ignore — compressor runs dry and wears out.
AlexProService noisy fridge repair
Tashkent visit — usually within an hour, 8:00–22:00. We check compressor, fan, mounts, level, refrigerant pressure.
Price before work. Relay, fan or compressor replacement as needed. Free diagnostics with repair. Warranty.
Takeaway
Conclusion
If your refrigerator is unusually noisy, don't wait for compressor failure. AlexProService diagnoses and fixes noise from 200,000 UZS, arrives in ~1 hour. +998 99 411 47 57 or **@Aleks_Pro_servis**. Refrigerator repair.
FAQ
Frequently asked questions
01Is a new fridge humming normal?+
Moderate hum while the compressor runs — yes. Strong knocking, whine or non-stop running — no, get it checked.
02Noisy only right after plugging in?+
Air in the line after moving is possible. Run 2–4 hours. If it persists — call a technician.
03Cost to fix fan noise?+
Cleaning from 200,000 UZS. No Frost fan replacement from ~180,000 UZS after inspection.
04Can I oil the compressor to reduce hum?+
No. The compressor is sealed. Loud hum means wear or low refrigerant — needs diagnosis.
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