Customer Service - Bosch TR4000 18 Gebrauchsanleitung

Operating instructions
Congratulations on purchasing this BOSCH appliance.
You have acquired a top-quality product, which will
give you a lot of enjoyment.
2 Operating instructions
2.1 Getting to know your appliance
This appliance is an electronically-regulated, pressurized continuous-
flow heater for decentrally supplying hot water.
The electronic continuous-flow heater heats the water as it flows through
the appliance. One or more taps can be supplied with warm water.
2.1.1 Operating element
1 Status display
2.2 Operating the appliance
2.2.1 Switching the appliance on and off
The continuous-flow heater switches on and heats the water when
the warm water tap is opened. It switches off again if the water tap
is closed.
The factory default setting for the warm water outflow temperature
is 55 °C.
Note: The electronic control unit senses the input water's temperature
and rate of flow and automatically adjusts the power consumption in
order to obtain the set output water temperature (up to the power limit).
Increasing the water temperature
If the supply water temperature is low and the flow-rate is high, then it
may happen that the set output water temperature is not obtained
5 A fault, what to do?
CAUTION:
Attention!
Repairs must only be carried out by an authorised technician. Improper
repairs can lead to risk of serious injury to the user.
5.1 Faults that the customer can troubleshoot himself
Fault
Water flow-rate is too low
6
Cause
The filter in either the water tap or the showerhead is
clogged.
because the power limit is exceeded. This is signalled by rapid flashing of
the status display.
• If this happens, then slightly close the warm water tap.
2.2.2 Status display
LED Appliance status
Off Off
Lights green On
Flashes green (1/s) The set temperature is not obtained; the rate of
water flow is too high for appliance rating
(the appliance has reached the power limit).
See "A fault, what to do?"
Flashes green (2/s) Cold-water rinse-through phase
Flashes red See "A fault, what to do?"
2.2.3 Startup after power failure
• Open the warm water tap fully and allow water to flow until it is warm.
2.2.4 Using the appliance after switching off the water supply
• Switch off the appliance (unscrew the fuse in the fusebox).
• Open the warm water tap and keep it open until the air has been
completely forced out of the water pipe.
• Switch the fuse back on again.
• Open the warm water tap fully and allow water to flow for at least one
minute.
Only then (for safety reasons) will the appliance begin to heat.
The appliance is now ready to operate.
2.2.5 Winter operation
Note: It is possible in winter that the supply temperature of the water is
reduced and the required outlet temperature is no longer achieved.
• Reduce the water flow at the tap until the desired water temperature
is reached.
3 Cleaning
• Only wipe off the appliance using a moist cloth.
• Do not use acidic or abrasive cleaning materials.
• Do not use a steam cleaner.
4

Customer Service

We ask you to always provide the BOSCH serial number (SNR/TTNR) of
your appliance when calling in a customer service engineer. You will find
If your appliance does not operate as required, it is often due to a very
minor problem. Please check whether you can remedy the fault yourself
by using the following guidelines. You will save yourself the costs of an
unnecessary visit by customer service personnel.
Solution
Remove the filter and either clean it or descale it.
6 720 876 041 (2020/06)