Bertazzoni 30-Inch Combi-Steam Oven Code -L0-: Water Tank Nearly Empty

What -L0- means

On Bertazzoni 30-inch combi-steam ovens, including the MAST30CSEX, PROF30CSEX, MASCS30X and PROCS30X, -L0- on the display shows that the water tank level is between 0 and 20%. The oven needs more water for steam cooking. Refill the tank and the message goes away. You may notice that a steam function pauses or will not start until the tank is topped up.

Common causes of -L0-

A tank that was not refilled after the last steam cycle
A tank that was filled only partway before cooking
A tank that is not seated fully so the level reads low
A level sensor that misreads even after a refill

✓ One safe check you can try

1. Remove the water tank and fill it with fresh cold water to the maximum mark. 2. Slide the tank back in until it seats firmly. 3. Wait a moment for the display to update. 4. Restart the steam function. 5. If -L0- stays on with a full tank, call us.

! Why to stop there

A level sensor that misreads sits in the water path and cannot be reached from the cavity.
Running a steam program with an empty tank can scorch the heating element area and trigger repeated stops.
Pouring water directly into the cavity instead of the tank can damage the oven.

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.

→Same appliance

Other Steam Oven codes

VAPBertazzoni 30-Inch Combi-Steam Oven Code VAP: Steam Reduction Running CAL (blinking)Bertazzoni 30-Inch Combi-Steam Oven Code CAL (Blinking): Descaling Overdue, Oven Blocked DEP / EMPBertazzoni 30-Inch Combi-Steam Oven Code DEP or EMP: Tank Must Be Emptied Descale light (steady / flashing)Bertazzoni 30-Inch Combi-Steam Oven Descale Light: Steady Means Due, Flashing Means Overdue PUMPBertazzoni 30-Inch Combi-Steam Oven Code PUMP: Water Returning to the Tank rESBertazzoni 30-Inch Combi-Steam Oven Code rES: Water Tank Not Seated SAFEBertazzoni 30-Inch Combi-Steam Oven Code SAFE: Child Lock Active

-L0--L0- questions

How full should the tank be?

Fill to the maximum mark with fresh, cold water. Anything under about a fifth of capacity triggers -L0-, and a long steam program needs more than a barely filled tank.

Does -L0- mean something is broken?

No. It is a normal reminder that the tank is nearly empty. It only becomes a repair when -L0- remains lit after you fill the tank and seat it properly.

Can I keep baking without steam?

Usually yes, with a non-steam mode. The low-water message affects the steam functions only. If you want to use steam, refill first. Roasting with fan or heat alone does not draw on the tank, but steam and combination programs will wait for water.