Operation
User manual 55170_hdb_en_13
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9.3
Maintenance and cleaning
NOTICE
Material damage caused by defective or damaged devices!
The functioning of the devices is not guaranteed.
Replace defective or damaged devices.
Clean the soiled contacts with oil-free compressed air or with spirit and a
leather cloth only.
Do not use contact spray.
NOTICE
In the event of maintenance work, you can replace the module with the same
type.
Check whether the rotary switch settings of the old and new modules
are identical.
