Bosch El600 Manual ((free)) -

Select the user PIN option, input a unique 6-digit code, and press # . 5. Maintenance and Troubleshooting

Hold your card against the designated sensor area on the display. Bosch El600 Manual

For the most detailed technical diagrams and specific error codes, it is recommended to keep a digital copy of the original stored on your smartphone for quick reference. Select the user PIN option, input a unique

Replace the batteries annually, regardless of whether the low-battery warning has triggered. To help tailor any further assistance, let me know: Select the user PIN option