Bosch B3512 - Keypad Cleaning

2.2 Keypad cleaning
Use a soft cloth and non-abrasive cleaning solution to clean your
keypad (for example, microfiber cloth and eyeglass cleaner).
Spray the cleaner onto the cloth. Do not spray directly onto the
keypad.
Control Panels Keypads overview | en 13
Bosch Security Systems, Inc. 2015.01 | 02 | F.01U.307.371