Appliance Alerts

Please be advised that Designer Series products (models IT, IC, ID, IW) that have the Smart Grid Option enabled for connection to either the Sub-Zero Group Owner’s App or third-party home system do not return to Sabbath Mode after a power outage.

Please refer to the manufacturer’s recommendations at the Sub-Zero website, which notes:

- To prevent this, the Smart Grid Option must be disabled.
- Disabling the Smart Grid Option prevents the unit from being connected to the Sub-Zero Group Owner’s App or third-party home system.
- A Wi-Fi icon or home and power cord icon appears when the unit has the Smart Grid Option enabled.
- The unit does not have to be paired to the Sub-Zero Group Owner’s App or a third-party home system for this issue to occur. The Smart Grid Option must be disabled regardless of connected status.

This issue has been resolved in newer models but affects owners of older models. Refer to the dates in the chart below to help identify the affected models.


- Model Prefix ID- (Integrated Drawer) Dec 2017-still in production (update pending for 2024)
- Model Prefix IC- (Integrated Column) Feb 2018-Nov 2022
- Model Prefix IT- (Integrated Tall) Feb 2018-Nov 2022
- Model Prefix IW- (Integrated Wine) Feb 2019-Aug 2022

For reference, appliance model information and manufacture date are clearly noted on the serial number label.

It has come to STAR-K's attention that there is a potential halachic issue with some Wolf cooktops that have the auto-ignite feature.

When a burner is on, opening or closing a drawer or cabinet door near the cooktop might extinguish the burner flame, which will automatically reignite.

The manufacturer has informed us that this poses no safety concern, as the flame comes back right away. However, this does present a halachic concern for Shabbos and Yom Tov.

STAR-K advises consumers to conduct the following test on a weekday:

1. Observe the cooktop under normal cooking conditions while opening and closing drawers and cabinet doors in the vicinity of the cooktop.
2. Verify that the burner remains on without interruption.

If testing indicates that opening or shutting a particular door or drawer does cause the burner to extinguish and reignite, that drawer should not be opened or closed on Shabbos and Yom Tov when the burner is on.

It is recommended that these doors or drawers be taped down before Shabbos and Yom Tov if the burner will be left on.