Maintenance And Cleaning - HomeMatic HM-LC-BI1PBU-FM Installation And Operating Manual

12 Maintenance and cleaning

The product does not require any maintenance.
Enlist the help of an expert to carry out any re-
pairs.
The device features an internal miniature fuse
to protect the electronics against current over-
load. If the device is overloaded and the fuse
blows, it can only be replaced by our service
department!
The mains voltage must be disconnected be-
fore the device is removed (trip the miniature
circuit-breaker)! Only qualified electricians (to
VDE 0100) are permitted to carry out work on
the 230 V mains.
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