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OPERATING INSTRUCTIONS
5.6
DRAINING DOWN THE APPLIANCE
If there is a risk of freezing, proceed as follows:
B Close the cold water valve of the water heater(s).
B Open hot water taps to drain the water heater(s).
B Remove all the water contained inside of the
appliance.
CAUTION:
To avoid damage to the appliance care
should be taken not to install the water
heater where there is a risk of freezing
conditions.
The internal frost protection is designed to
provide protection for the water heater
down to approximately -10 °C for short term
conditions only. It will not protect the
appliance in areas where the temperature is
frequently expected to be below freezing.
- The frost protection will not protect the
installation outside the appliance from
freezing. Suitable measures should be taken
to protect the installation against frost
damage.
5.7
RESET BUTTON
This appliance has an error code system.
These codes are shown on the LCD display.
(Fig. 8, pos. 4).
If the LCD shows the error symbol
power or unplug the water heater. Follow instructions
below to reset the error first.
Record the error code on LCD and consult chapter 11 to
identify the error.
Fig. 19 Error code
After following instructions indicated in
"Troubleshooting".
chapter 11.
16
do not shut off
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B Press reset button firmly in order to return the water
heater to normal operation.
Fig. 20 Reset button
If the fault remains and cannot be cleared by pressing
the reset button, contact Worcester, Bosch Group for
assistance.
5.8
LOCKED CONDITION
This condition is only valid for appliances with one or
more remote controls installed.
Fig. 21 Locked condition
Whenever LCD shows
cannot be adjusted. In this case, the appliance is being
operated by the remote control which has already set an
output temperature. Appliance will be unlocked
automatically, 5 minutes after closing hot water tap.
6 720 646 322 (2012/05)
6720608920-15. 1 AL
6720608920-21. 1 AL
the temperature setting
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