Troubleshooting; Environment / Disposal - Bosch MM100 Installation Instructions For Installers

5

Troubleshooting

Only use genuine parts. Any damage resulting
from spare parts that are not supplied by the
manufacturer is excluded from liability.
If a fault cannot be rectified, please contact the
responsible service engineer.
Indicator Possible cause
Constantly OFF Coding card on 0
Power supply interrupted.
Fuse is defective
Short circuit in the BUS connection
Constantly red Internal fault
Flashing red Coding card in invalid position or in
intermediate position
Temperature limiter on MC1 (15-16) is
not connected
Flashing green Maximum cable length for BUS
connection exceeded.
 Fault shown on user interface display ▶ The user interface instructions and the service manual contain
Constantly green No fault
Table 6
6

Environment / disposal

Environmental protection is a fundamental corporate strategy
of the Bosch Group.
The quality of our products, their efficiency and environmental
safety are all of equal importance to us and all environmental
protection legislation and regulations are strictly observed.
We use the best possible technology and materials for
protecting the environment taking into account of economic
considerations.
Packaging
We participate in the recycling programmes of the countries in
which our products are sold to ensure optimum recycling.
MM100
The indicator shows the operating condition of the module.
If a fault occurs on the module, the mixing valve in the
connected heating circuit will be set to a position determined
by the module. This means that it is possible to continue
operating the system with a reduced output.
Certain faults are also shown on the display of the user
interface assigned to the heating circuit, and on the display of
the higher-level user interface where applicable.
Remedy
▶ Set the coding card.
▶ Switch on the power supply.
▶ When the power supply is switched off, replace the fuse
( Fig. 16, page 96).
▶ Check BUS connection and repair if required.
▶ Replace module.
▶ Set the coding card.
▶ Connect the jumper (supplied) or a temperature limiter to
MC1.
▶ Make shorter BUS connection.
further information on troubleshooting.
Standard operation.
All of our packaging materials are environmentally friendly and
can be recycled.
Old electrical and electronic appliances
Electrical or electronic devices that are no
longer serviceable must be collected
separately and sent for environmentally
compatible recycling (in accordance with the
European Waste Electrical and Electronic
Equipment Directive).
To dispose of old electrical or electronic
devices, you should use the return and
collection systems put in place in the country
concerned.
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6 720 813 621 (2014/12)
6 720 645 409-20.1o