Bertazzoni 30-Inch Combi-Steam Oven Code PUMP: Water Returning to the Tank

What PUMP means

On Bertazzoni 30-inch combi-steam ovens such as the MAST30CSEX, PROF30CSEX, MASCS30X and PROCS30X, PUMP appears after switch-off while the oven pumps residual water back to the tank. The word stays on the display until the water temperature falls below 167F. It is part of the normal shutdown, so you only need to wait. Nothing is wrong while the word is showing, and the oven becomes usable again afterward.

Common causes of PUMP

Residual water in the steam system after a cooking program
Water still above 167F, so the pumping stays active
A steam program that ended just moments ago
A pump or temperature reading that keeps PUMP on for far too long

✓ One safe check you can try

1. Leave the oven door closed and let the pump finish. 2. Wait until PUMP disappears and the display returns to normal. 3. Then take out the tank, empty it and dry it. 4. Keep your hands away from the cavity while it is hot. 5. If PUMP stays on for hours, call us.

! Why to stop there

Stopping the oven partway through pumping can leave hot water in the lines.
Opening the door in a hurry releases steam that can scald.
A stuck pump or temperature reading needs measuring, not guessing.

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

-L0-Bertazzoni 30-Inch Combi-Steam Oven Code -L0-: Water Tank Nearly Empty rESBertazzoni 30-Inch Combi-Steam Oven Code rES: Water Tank Not Seated SAFEBertazzoni 30-Inch Combi-Steam Oven Code SAFE: Child Lock Active 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

PUMPPUMP questions

How long does PUMP stay on?

Until the water has cooled below 167F. That is usually a matter of minutes after a steam cycle. A very long cycle or a hot kitchen makes it last somewhat longer.

Can I turn the oven off while PUMP is showing?

The oven is already off in terms of cooking. Leave the power connected so the pump can finish its work, and the display returns to normal by itself.

When does PUMP signal a real problem?

If it never clears even after the oven is completely cool, the temperature reading or the pump is not working properly. We would test both, and give a written price first.