Error code · Wall Oven

Monogram ZTS90 Wall Oven: Sabbath Mode Active

On Monogram LCD wall ovens in the ZTS90 family, such as the ZTS90DSSNSS, Sabbath mode is a deliberate setting and not an error. While it is on, the oven lights and tones are disabled and only…

Low risk · DIY check OK

(713) 955-0955

Code: Sabbath Mode
Appliance: Wall Oven
Brand: Monogram
Warranty: 30-day workmanship

What Sabbath Mode means

On Monogram LCD wall ovens in the ZTS90 family, such as the ZTS90DSSNSS, Sabbath mode is a deliberate setting and not an error. While it is on, the oven lights and tones are disabled and only Traditional Bake is available. The owner's troubleshooting chart lists it under an oven that does not work or appears not to work, because nothing sounds and no lights come on. Other Monogram wall ovens, the ZET and ZGP lines, reach a similar option through an SF menu instead of Settings.

Common causes of Sabbath Mode

Sabbath turned on in the Settings menu
A holiday setting left on after use
Confusion with a true no-heat condition

✓ One safe check you can try

1. Open Settings on the LCD and look at the Sabbath option. 2. Turn Sabbath mode off. 3. Start a normal bake and confirm the lights and tones return. 4. If the oven still does not heat with Sabbath off, call us.

! Why to stop there

If heat is missing with Sabbath off, we test the bake element circuit and the control
Silence alone is not proof of a problem, so we confirm what mode the oven is really in
We check the door switch and temperature sensor before suggesting any part

Opening a panel yourself does not automatically cancel a manufacturer warranty, but it can cause accidental damage, and some manufacturers set their own service conditions. Check your warranty terms, or ask us, before deciding.

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Other Wall Oven codes

C5Monogram ZET Wall Oven Code C5: lower encoder temperature link lost C6Monogram ZET Wall Oven Code C6: lower mode encoder out of contact F Code on LCD ScreenMonogram ZTS90 Wall Oven Code F: Function Error Message LCD Screen LockedMonogram ZTS90 Wall Oven: LCD Locked Against Touches LOCKED flashes in displayMonogram ZET Wall Oven Message "LOCKED" F-coMonogram ZGP Range Code F-co: Stored F code menu SFMonogram ZET Wall Oven: SF Menu Will Not Appear C3Monogram ZET Wall Oven Code C3: no reply from the upper mode encoder

Sabbath ModeSabbath Mode questions

Why is my oven silent with no lights?

Sabbath mode turns off the lights and tones and limits cooking to Traditional Bake, so the oven can seem dead. Open Settings on the LCD and check the Sabbath option first.

Is it safe to leave Sabbath mode on?

It is meant for use around the observance. Outside it, you lose convection modes, lights and signals, so most owners turn it off once the observance ends.

Do other Monogram ovens have it?

Yes, though the ZET wall ovens and ZGP ranges reach it through an SF menu rather than Settings. The key steps differ between families, so we match them to your exact model number.

Book a visit

Still unsure about Sabbath Mode?

A technician diagnoses it on site and gives you the price in writing before any work starts.

(713) 955-0955