ETNA WL915 Mode D'emploi page 40

USING THE WARMING DRAWER
Switch off the appliance and allow it to cool before carrying out
maintenance.
All surfaces should be cleaned only with a damp cloth and some soapy
water. Then dry with a soft cloth.
Do not use a steam cleaner to clean the appliance.
Using abrasive products, alcohol or solvents is not recommended;
these can damage the appliance.
The front is stainless steel or glass and is susceptible to scratching.
Use special non-abrasive cleaning products suitable for stainless steel.
The glass bottom can be cleaned with warm water and washing-up
liquid. It should only be replaced in the drawer once it is perfectly dry.
EN 10