Repair Cases / Sub-Zero 661 Evaporator Sealed System Leak
Sub-ZeroModel: 661📍 Houston, TX
Sub-Zero 661 Evaporator Sealed System Leak

Customer Complaint / Symptoms
- •Refrigerator running warm — 55 degrees F in fridge section
- •Freezer down to only 20 degrees F instead of 0 degrees F
- •Unit running constantly
🔍 Diagnosis / Cause Found
Sealed system leak at evaporator. Both compressors operational but unable to maintain temperature due to low refrigerant charge.
📸 Repair Photos

Sub-Zero 661 built-in refrigerator — River Oaks, Houston TX

Sub-Zero 661 evaporator coil after leak repair and recharge
🔧 Repair Performed
Located and repaired pinhole leak, replaced drier on both circuits, recharged both sides of the dual compressor system.
🛒 Parts Replaced
- ✓Evaporator repair
- ✓Dual circuit filter driers (x2)
- ✓Refrigerant (both circuits)
✅ Result
Both sections restored to proper temps. 1-year warranty on sealed system work.
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