SYMPTOM

Refrigerator/Freezer runs for long periods

Appliance: Sub-Zero Built-In (600 Series) Models: 601R, 601RG, 601F, 611, 611G, 642, 650, 650G, 661, 632, 685, 695

⚠ What This Means

The compressor and/or fan motors run continuously or for extended periods without cycling off as expected.

Clean the condenser area behind the grille. A dirty condenser forces the compressor to run longer.
Check that doors and drawers are fully closed. An open door causes the unit to work harder.
If a large amount of food was recently added, the unit will need to run longer to bring temperatures down. This is normal.
On hot days and in warm room temperatures, longer motor run times are normal.
Note: Some sounds during extended operation are normal -- refrigerant circulation, fan operation, ice maker operation, defrost cycle, and compressor operation.

Possible Cause	How to Fix
Dirty condenser	Clean condenser area every 3 to 6 months
Door or drawer left open	Close and ensure proper seal
Large food load added recently	Allow time for temperature to stabilize
High ambient temperature / hot weather	Normal -- unit runs longer in warm environments
Normal defrost cycle or ice making cycle	Normal operation

Test Specifications
Condenser cleaning interval: Every 3 to 6 months

Find top-rated Sub-Zero Built-In (600 Series) repair technicians in your area. Licensed, insured, and reviewed by homeowners.

We may earn a referral fee when you hire through our partner links.

It is normal to hear the operation of fans and motors. Sounds will be accentuated based on the placement of the unit and overall room design.