Wolf CSO Steam Oven Code E16: hold time ran out waiting for you

What E16 means

On Wolf CSO convection steam ovens such as the CSO24 and CSO30 series, E16 means the maximum hold time was exceeded. An operation timed out while waiting for input, which can be as simple as a door left open or a water tank that was not refilled. You see E16 after the oven paused and nobody responded in time.

Common causes of E16

Door left open or not closed fully when the program needed it closed
Water tank empty or not seated when the oven needed it
No keypress during a step that asks for confirmation

✓ One safe check you can try

1. Close the door firmly. 2. Pull out the water tank, fill it with fresh water, and push it back until it seats. 3. Press the power key to clear E16. 4. Start the program again and respond to prompts as they appear. 5. If E16 returns right away, call us.

! Why to stop there

An E16 that repeats with the door shut and tank full can mean a door switch or tank sensor needs attention.
We test the input that is not registering rather than swapping parts.
You get a written estimate before work, and repairs have a 30-day warranty.

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 Steam Oven codes

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E16E16 questions

Is E16 a breakdown?

Usually not. It is a timeout, so the oven waited for something and gave up. Fix the door or tank and restart, and it normally clears.

Why does it keep returning after I refill the tank?

The oven may not be sensing the tank or door. If both look right and E16 repeats, a sensor or switch could be the issue, and we can test it.

Will I lose my program?

Yes, the cycle stops when the hold time runs out. Enter the program again after clearing the message.