Troubleshooting; Environmental Protection And Disposal - Bosch Thermotechnik MU 100 Installation Instructions Manual

5

Troubleshooting

Use only original spare parts. Damage caused by the use of
spare parts not supplied by the manufacturer is excluded from
the warranty.
▶ If a fault cannot be rectified, please contact your local
service engineer.
If the coding switch is turned to 0 when the power supply is
switched on for >2 s, all the module outputs are reset to the
factory settings, the faults are deleted and all settings are reset
to the factory settings.
▶ Restart the module.
The On/Off indicator indicates the operating condition of the
module.
Status Possible causes
indicator
Constantl Invalid switch
y red position or internal
fault
Red Temperature
flashing sensor faulty or
pump alarm output
Constantl Coding switch set
y yellow to 0
Green No communication
flashing with the BUS
system
Constantl No fault, normal
y green operation
Constantl Lack of electrical
y OFF supply
Table 10
MU 100 – 6721831604 (2021/01)
4 5 6
3 7
2 8
1 9
10
0
Remedy
▶ Replace the module or
select valid switch
position.
▶ Replace temperature
sensor or eliminate
pump fault.
▶ Select the correct
encoding position.
▶ Establish the BUS
connection to the EMS-
BUS or check it.
▶ –
▶ Supply the module with
mains voltage.
6

Environmental protection and disposal

Environmental protection is a key commitment of the Bosch
Group.
Quality of products, efficiency and environmental protection
are equally important objectives for us. Environmental
protection laws and regulations are strictly observed.
To protect the environment, we use the best possible
technology and materials while taking into account economic
considerations.
Packaging
Where packaging is concerned, we participate in country-
specific recycling processes that ensure optimum recycling.
All of our packaging materials are environmentally compatible
and can be recycled.
Used appliances
Used appliances contain valuable materials that can be
recycled.
The various assemblies can be easily dismantled. Synthetic
materials are marked accordingly. Assemblies can therefore be
sorted by composition and passed on for recycling or disposal.
Old electrical and electronic appliances
This symbol means that the product must not be
disposed of with other waste, and instead must be
taken to the waste collection points for treatment,
collection, recycling and disposal.
0 010 013 313-001
The symbol is valid in countries where waste
electrical and electronic equipment regulations apply, e.g.
"European Directive 2012/19/EC on old electronic and
electrical appliances". These regulations define the framework
for the return and recycling of old electronic appliances that
apply in each country.
As electronic devices may contain hazardous substances, it
needs to be recycled responsibly in order to minimize any
potential harm to the environment and human health.
Furthermore, recycling of electronic scrap helps preserve
natural resources.
For additional information on the environmentally compatible
disposal of old electrical and electronic appliances, please
contact the relevant local authorities, your household waste
disposal service or the retailer where you purchased the
product.
You can find more information here:
www.weee.bosch-thermotechnology.com/
Troubleshooting
27