Hisense BI5221PX Detailed Instructions page 41

During pyrolysis, unpleasant odours may be released from the appliance. Therefore, we
recommend ventilating the room.
When the pyrolytic self-clean program is completed and the oven has cooled down, use
a damp cloth or a soft sponge to wipe the ashes from the oven cavity. Do not rub the
gasket.
For average use of the oven, we recommend running the pyrolytic self-clean function
once per month.
CLEANING THE DEEP AND SHALLOW TRAY IN THE OVEN:
After use, clean the baking trays with hot water and detergent, then wipe them with a
cloth and place them into the 2nd or 3rd guide rail. Do not place a baking sheet or tray
into the 1st guide rail.
During pyrolytic self-clean, the baking sheets and trays may partly discolour and loose
some shine. This does not affect the use of the equipment.
When using the pyrolytic self-clean process to clean the baking trays, the oven cavity
may not be completely clean at the end of the cycle.
Before the start of pyrolytic self-clean, use the supplied
guide rails (depending on the model).
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