LG LEXS28596S /04 Condenser Fan Noise Repair
📞 Call (346) 512-3688🔧 Performed by Serhii T.
The Problem
- •Loud buzzing or rattling noise coming from the back of the refrigerator
- •Noise increases when the compressor is running
- •Refrigerator running warmer than usual or cycling more frequently
- •Unusual vibration felt through the floor near the appliance
🔍 Diagnosis
Upon arrival at the customer's residence in Sugar Land, TX 77498, the technician began a systematic inspection of the LG refrigerator model LEXS28596S /04 (Serial: 107KRLR1G472), a unit manufactured in Korea rated at 115V ~ 60Hz, 3.1A. The customer's primary complaint was a persistent loud noise emanating from the rear of the unit. The technician pulled the refrigerator away from the wall and immediately identified that the noise originated from the condenser fan motor assembly located at the bottom rear of the cabinet. Using a digital multimeter, the technician measured current draw at the fan motor leads and found it pulling significantly above its rated specification, indicating a failing winding. Visual inspection confirmed heavy dust and debris accumulation around the condenser coils and fan blade — a direct result of prolonged lack of maintenance. The condenser fan blade showed signs of wobble due to a worn motor shaft bearing, which was causing the audible rattling and vibration. The condenser coils were also heavily fouled, restricting airflow and placing additional thermal load on the sealed system. The refrigerant system uses R-600a (isobutane) charged at 2.12 oz (60g) from the factory; a baseline pressure check confirmed the sealed system remained intact. Had the customer delayed further, the added thermal stress on the compressor could have escalated this into a sealed system failure — a significantly more costly repair.
🔧 The Repair
- ✓Disconnected the refrigerator from the 115V power outlet and documented all label specifications for reference before beginning disassembly.
- ✓Pulled the unit away from the wall to gain full access to the rear condenser compartment panel.
- ✓Removed the rear access panel (four Phillips-head screws) to expose the condenser fan motor, condenser coils, and compressor assembly.
- ✓Disconnected the condenser fan motor wiring harness connector and used a digital multimeter to test motor winding resistance — readings confirmed shorted windings indicative of motor failure.
- ✓Removed the failed condenser fan blade from the motor shaft by loosening the retention clip, then unbolted the motor mounting bracket (two hex-head screws) from the compressor compartment frame.
- ✓Cleaned the condenser coil fins thoroughly using a condenser coil brush and a low-pressure vacuum to remove approximately 2–3 years' worth of accumulated dust, lint, and debris buildup.
- ✓Inspected the compressor for abnormal surface temperature and verified current draw was within acceptable range relative to the unit's 3.1A label rating — compressor was confirmed operational.
- ✓Installed the OEM-compatible replacement LG condenser fan motor with matching voltage and RPM specifications onto the existing mounting bracket and secured it firmly.
- ✓Attached the replacement condenser fan blade onto the new motor shaft and verified blade clearance with surrounding components to prevent contact noise.
- ✓Reconnected the motor wiring harness, ensuring secure plug engagement, and reinstalled the rear access panel.
- ✓Restored power to the unit and monitored condenser fan startup — motor spun up smoothly with no vibration or noise anomalies detected.
- ✓Verified full system operation by confirming proper compressor cycling, normal airflow through the condenser, and stable temperature drop in both the fresh food and freezer compartments before completing the job.
✓ Result
Following the condenser fan motor and blade replacement, along with a thorough condenser coil cleaning, the LG LEXS28596S /04 returned to quiet, efficient operation immediately. Within approximately 2–3 hours, freezer temperatures stabilized at 0°F and fresh food compartment settled at 37°F. The customer was relieved the issue was resolved without compressor replacement and expressed satisfaction with the quick turnaround. A 90-day labor warranty was provided on the repair.
💡 Technician Notes
LG French door and side-by-side refrigerators like the LEXS28596S are excellent appliances, but they require periodic condenser maintenance to achieve their rated service life. The condenser coil and fan are located at the bottom rear and tend to collect pet hair, dust, and lint rapidly — especially in homes with carpet or pets. LG recommends cleaning the condenser coils at least once every 6–12 months using a coil brush and vacuum. Watch for early warning signs such as increased operational noise from the back of the unit, the refrigerator running longer cycles than usual, or the area behind the fridge feeling excessively warm. Catching a failing condenser fan early — as this customer did — prevents heat buildup that can overstress the compressor and lead to sealed system failure involving the R-600a refrigerant, which is a far more complex and expensive repair.
Frequently Asked Questions
Why is my LG refrigerator making a loud noise from the back?
A loud noise from the back of an LG refrigerator is most commonly caused by the condenser fan motor. On models like the LEXS28596S, the condenser fan is located in the bottom rear compartment. When the motor bearings wear out or debris clogs the blade, it creates rattling or buzzing. A technician can diagnose and replace the motor quickly, often in a single visit.
How much does it cost to replace a condenser fan motor on an LG refrigerator in Sugar Land, TX?
Condenser fan motor replacement on LG refrigerators in the Sugar Land, TX 77498 area typically ranges from $150 to $280 including parts and labor. The final cost depends on the specific model and parts availability. For the LEXS28596S, OEM-compatible motors are generally in stock, keeping repair time and cost low — especially compared to a compressor replacement.
How do I know if my LG refrigerator condenser fan needs maintenance or replacement?
Key warning signs include unusual rattling or humming from the back of the unit, longer-than-normal cooling cycles, the area behind the fridge feeling very warm, or the refrigerator not cooling as efficiently. On LG models like the LEXS28596S, these symptoms often point to a failing condenser fan or heavily fouled condenser coils — both preventable with routine annual maintenance.
Is it worth repairing the condenser fan on an LG LEXS28596S, or should I replace the refrigerator?
A condenser fan motor replacement on the LG LEXS28596S is absolutely worth repairing. It is one of the least expensive refrigerator repairs and restores full efficiency to the unit. Replacement makes sense only if the compressor or sealed system has also failed. Catching the fan issue early — as this customer did — prevented a much costlier repair and extended the appliance's lifespan.
Does replacing the condenser fan on an LG refrigerator affect the R-600a refrigerant system?
No — condenser fan replacement on the LG LEXS28596S does not involve the sealed refrigerant system. The R-600a charge of 2.12 oz (60g) remains undisturbed. However, a prolonged failed fan can overheat the compressor and eventually damage the sealed system. That's why prompt condenser fan repair is critical — it protects the R-600a sealed system from heat-related failures that require refrigerant recovery and recharge.
Repair Summary
- Brand
- LG
- Model
- LEXS28596S /04
- Repair Type
- Condenser Fan Motor Replacement
- Refrigerant
- R-600a
- Root Cause
- Neglected maintenance caused condenser fan motor failure
- Parts Replaced
- ✓LG OEM-compatible condenser fan motor (115V, matching RPM spec for LEXS28596S /04)
- ✓Condenser fan blade (matched OEM blade diameter and pitch)
- Location
- Sugar Land, TX 77498
- Status
- ✓ Completed
Service Area
We provide refrigerator repair service in Sugar Land and surrounding areas.
View Sugar Land Service Area →📸 Repair Photos
LG LEXS28596S /04 repair in Sugar Land, TX — photo 5
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