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Factory Default Settings; Maintenance; Technician); To Remove The Front Panel - Bosch Optiflow Professional GWH12 Installation Manual

Room sealed gas continuous flow water heaters 1 ctd e23/31 f5 l
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▶ Enter the service mode by pressing and holding down the
,
, and
seconds (section 5.2).
Display will show "P2".
▶ Press
until the display shows "P0".
▶ Press the button
▶ Open a hot water tap.
With the pressure gauge connected, let the value measured
stabilise.
▶ Press
or
until the pressure gauge shows the
value indicated in tab. 13.
▶ Press
for 3 seconds.
The displayed value flashes as a sign of confirmation.
▶ Press
to exit this function.
Display will show "P0".
▶ Close the hot water tap.
The adjustment of the burner pressure is complete.
5.4

Factory default settings

▶ Enter the service mode by pressing and holding down the
,
, and
seconds (section 5.2).
Display will show "P2".
▶ Press
until the display shows "P4".
▶ Press the button
Display will show "E".
▶ Press
until the display shows "rP".
▶ Press the button
Display will show "P1"
▶ Press
for 3 seconds.
The displayed value flashes as a sign of confirmation.
▶ Press
.
Display will show "P1"
▶ Press
until the display shows "P2".
▶ Press the button
The displayed value flashes as a sign of confirmation.
▶ Press
.
Factory default settings are now restored.
Optiflow Professional
buttons simultaneously for 3
.
buttons simultaneously for 3
.
.
for 3 seconds.
Maintenance (only by authorised service technician) | 19
6
Maintenance (only by authorised service

technician)

Bosch recommend that to maintain optimum performance
from this appliance, servicing should be carried out by suitably
licensed persons at intervals not greater than two (2) years.
Maintenance must only be performed by an
authorised service technician.
DANGER: Due to electric shock!
▶ Always isolate the electrical power to
the appliance (by turning off the power
point and removing the power plug from
the electrical socket) before carrying
out any work on electrical parts.
▶ Your appliance should only be attended to by a Bosch
service technician. To locate your nearest service provider,
call: AU 1300 30 70 37, NZ 080054 33 52.
▶ Only use Bosch supplied replacement parts.
6.1

To remove the front panel

▶ Remove the bezel around the display from the appliance by
gently levering it off with a screwdriver. (fig. 10, [1]).
▶ Loosen the 3 fixing screws from around the display and 2
front panel fixing screws from the underside of the
appliance (fig. 10, [2]).
Fig. 10
Remove the front
▶ Remove the front by lifting forwards and upwards.
6 720 810 560 (2016/06)

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