Why is there frost on the back wall of my Sub-Zero freezer?
The defrost cycle has stopped, usually a failed defrost heater or thermistor.
Quick summary
Freezer and sealed system work
Sub-Zero freezer repair in NYC for a freezer that is not freezing, frosting over or running constantly: defrost heater, thermistor, evaporator fan motor, compressor, sealed system and refrigerant recharge, on freezer drawers, upright freezers and the 700 series.
- Freezer setpoint
- 0 F, held within one degree
- Frost
- Defrost heater or thermistor
- Not freezing
- Evaporator fan motor
- Running constantly
- Compressor or sealed system
- 90 days
- parts and labor, warranted
- 19
- neighbourhoods covered
- 4
- appliance types repaired
- Same day
- slots across Manhattan
Frost and ice build-up
A failed defrost heater or thermistor stops the defrost cycle, and frost builds on the evaporator. This is part of our Sub-Zero repair in Manhattan.
Freezer not freezing
An evaporator fan motor that stops leaves the freezer not freezing while the compressor still runs, and the ice maker slows with it.
Running constantly
A compressor running constantly points to the sealed system. A refrigerant recharge follows only once the refrigerant loss is traced and sealed. Sub-Zero sealed system repair and Sub-Zero refrigerator compressor repair are done on site, on a written estimate first.
- Freezer drawers and upright freezer repair
- Refrigerator freezer repair on combined units
- 700 series units
- Temperature settings checked against the setpoint after every repair
Do you replace Sub-Zero compressors?
Yes, with sealed system repair and a refrigerant recharge once the loss is traced and sealed.
