Cleveland Convotherm OEB-20.20 Service And Parts Manual page 20

a. The third step is Steam mode at 86°F for 1 minute. No action is needed.
b. The fourth step is Steam at 212°F for 10 minutes, followed by a Signal Tone.
15. Turn OFF the Combi when the Signal Tone sounds.
16. Use the hand shower to rinse thoroughly the oven chamber, accessories, and behind the fan guard.
17. In the case of severe staining or soiling, repeat the cleaning process.
18. After use or after cleaning, leave the Combi door open.
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