Bosch GWH 12 CTDE 31 F5 S7805, Installation And Operating Instructions Manual

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Environmental protection/disposal
Therm 4000 S – 6 720 815 298 (2017/05)
Notice: Faults, which are notified by the instantaneous water
heater via a signal light on the Reset button together with a
display in the LCD box, cause the device to be safety locked.
After the problem has been eliminated, the Reset button must
be pressed to put the device into operation again.
10 Environmental protection/disposal
Environmental protection is a key commitment of the Bosch
Group.
Quality of products, efficiency and environmental protection
are equally important objectives for us. Laws and requirements
aimed at protecting the environment are strictly observed.
In order to protect the environment, we use the best possible
technology and materials within the constraints of 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.
Old appliance
Old appliances contain materials that should be recycled.
The relevant assemblies are easy to separate and all plastics
are identified. This means that the individual assemblies can be
easily sorted and directed to either recycling or disposal.
EC Failure ionization during operation ▶ Check type of gas
▶ Check gas pressure
▶ Check the ignition system
▶ Check the output of combustion gases and
remove dirt or other impediment to good
extraction.
EE Modulating solenoid valve not connected. ▶ Check the connections at the valves and at the
control block.
▶ Call an approved contractor.
EF A device intended for natural gas is connected to
LPG. ▶ Call an approved contractor.
F7 Although the device is disconnected from the power
supply, a flame is detected. ▶ Check the cable and electrodes.
▶ Check the flue and data plate.
1)
▶ Press the Reset button.
F9 Safety solenoid valve not connected. ▶ Check the 3 connections on the valves and
control block.
1)
FA Defective gas isolator. ▶ Call an approved contractor.
FC Keys, which are pressed for longer than 30 seconds. ▶ Let go of the key.
is displayed,
although no solar
system is present.
The set outlet temperature is below the minimum
output delivered by the device. ▶ Increase the DHW volume.
If the problem persists:
▶ Increase the outlet temperature
is displayed at
low water
temperature.
The set outlet temperature is below the minimum
output delivered by the device. ▶ Increase the DHW volume.
If the problem persists:
▶ Call an approved contractor.
Noise emission The device emits unusual noises (vibration). ▶ Call an approved contractor.
1) The solutions described here must only be carried out by approved contractors.
Display Description Remedy
Table 18