Sub-Zero Freezers Not Cooling Repair in Dunwoody

When a Sub-Zero freezer shows water pooling on floor, the cause is often Clogged defrost drain tube diverting meltwater to the floor instead of drain pan, Drain pan cracked, displaced, or overflowing during defrost cycle, and Drain plug on chest freezer removed, cracked, or not seated properly. Our factory-trained Dunwoody technicians diagnose and repair using genuine OEM Sub-Zero parts.

When a Sub-Zero freezer shows freezer over-freezing or too cold, the cause is often Thermostat calibration drift — set point reading and actual control point separated, Defrost system over-running cooling period — uneven cycle compensation, and Temperature control thermostat stuck in closed position — calling for cooling continuously. Our factory-trained Dunwoody technicians diagnose and repair using genuine OEM Sub-Zero parts.

When a Sub-Zero freezer shows excessive frost buildup, the cause is often Lid or door left open frequently or not closing completely, Drain tube clogged so defrost water cannot exit and refreezes, and Auto-defrost control board malfunction. Our factory-trained Dunwoody technicians diagnose and repair using genuine OEM Sub-Zero parts.

When a Sub-Zero freezer shows door not sealing, the cause is often Food items protruding inside and blocking door from closing completely, Gasket material hardened or cracked from age and repeated use, and Gasket pulled out of mounting channel. Our factory-trained Dunwoody technicians diagnose and repair using genuine OEM Sub-Zero parts.