What Temperatures Should a Sub-Zero Be Set To?
Table checked byDean HalvorsenTradeRefrigeration technician — sealed systems and airflowHoldsEPA 608 certifiedDated
| Compartment | Setting | Threshold | What to do |
|---|---|---|---|
| Refrigerator | 38°F (3°C) preset | A steady reading well above 38°F | Check the coil and the door before touching the setting |
| Freezer | 0°F (−18°C) preset | Soft ice cream, a reading above 0°F | Make sure the door seats fully, then give it a day |
| Any change you make | One degree at a time | Two moves with no change a day later | Stop adjusting and look for a cause |
| The kitchen itself | 60–90°F room | Room colder than 60°F or above 90°F | Bring the room back into range first |
| Call when | two setpoint moves a day apart change nothing on the thermometer. Sub-Zero Repair Issaquah, (425) 272-6613 | ||
Trust a thermometer left mid-shelf for a few hours with the door shut, not one read just after unloading the shopping.
The room counts too. Sub-Zero builds its indoor units for a 60–90°F room and says no repair can correct performance while the room sits outside that range, so a chilly South Cove lower-level bar is the first thing to fix. If the reading still drifts, call Sub-Zero Repair Issaquah at (425) 272-6613.
- 1Paper slip at the seal
- 2Flashlight
- 3Old gasket
The short answer, then what people ask next
What Temperatures Should a Sub-Zero Be Set To?
Leave them where the factory put them: 38°F in the refrigerator and 0°F in the freezer. Both adjust one degree at a time on the control panel. If a clean coil and a closing door still leave a compartment off its setting, call Sub-Zero Repair Issaquah on (425) 272-6613.
Will setting it colder fix a warm refrigerator?
Rarely. If the cabinet is warm because the coil is furred or the door is not closing, a lower setting only makes the compressor run longer against the same problem. Sub-Zero's troubleshooting checks the condenser and the door first, so do those before you move the number.