Wolf Steam Oven Code A1: Hold time exceeded

What A1 means

On Wolf convection steam ovens such as the CSO24TE/S/TH, CSO30TM/S/TH, CSO2450TE/S/T, and CSO3050TM/S/T, A1 (also shown as E16) means the maximum hold time was exceeded while the oven waited for input. The door was closed and the water tank filled, but nothing was started. Owners see A1 after leaving a mode idle, and the oven stops until they confirm. Turning the oven off and starting again normally clears it.

Common causes of A1

Cooking mode selected but not started in time
Oven waiting for a confirmation press
Door closed and tank full while the oven sat idle

✓ One safe check you can try

1. Turn the oven off. 2. Check that the water tank is seated and filled to the line. 3. Close the door fully. 4. Choose a mode, set a temperature, and press start without waiting too long. If A1 appears right away every time, call us.

! Why to stop there

A1 right after a button press may mean a control problem
A response that is too slow is the usual cause
We check controls only when the code repeats immediately
Written price first with 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.

→Same appliance

Other Steam Oven codes

E87Wolf 24-Inch E Series Code E87: Exhaust slide valve jammed or shorted E42Wolf Convection Steam Oven Code E42: Water temperature sensor error E26Wolf 24-inch E Series Code E26: Break or loose contact in climate sensor, or blocked duct E87Wolf Convection Steam Oven Code E87: Exhaust slide valve stuck F6Wolf Convection Steam Oven Code F6: Processor and Main Relay Error E51 F0Wolf Convection Steam Oven Code F0: Core temperature probe sensor problem F15Wolf CSO Steam Oven Code F15: niche running too hot F1Wolf Convection Steam Oven Code F1: Food probe error

A1A1 questions

Does A1 mean my steam oven is broken?

Usually not. The oven waited too long for you to confirm a setting. Start again and it should run normally. Nothing needs repair in that case.

What is E16?

E16 and A1 refer to the same condition on these ovens: the hold time was exceeded while waiting for input. Different displays show it in different ways.

It happens every time. What should I do?

If A1 returns immediately after you press start, the controls may not be registering the input. Call us so we can check the panel. That would point to the keys.