Proline PMG20W Manuel D'utilisation page 11

Roller rest
The roller rest should be removed and cleaned in hot soapy water at least
once a week to prevent grease restricting the rotation of the wheels. The well
in which the roller runs should be cleaned as well.
Outer surfaces
To clean the outside surface, use a damp cloth.
Avoid using abrasive products such as scouring pads that may damage the
cosmetic surfaces. Make sure water does not seep into the ventilation slots.
CAUTION
Some waveguide covers can be easily damaged take care when cleaning.
Accessories should be washed in warm soapy water by hand.
Do not wash accessories in a dishwasher.
WARNINGS:
If the inside of the oven cavity and door seal are not kept
scrupulously clean there is a danger of damage due to sparking
inside the oven cavity invalidating the warranty.
Never scrape the oven cavity walls with sharp objects.
Never immerse the appliance, its cord or plug in water or any other
liquid.
Never clean this product with a steam cleaner.
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