Second Service Level; E Metric Or Us Customary Units; Service Function; Software Version - Bosch ZBR16-3A Installation And Service Instructions Manual

Service function 0.E: Metric or US customary units
With this service function you can set if Metric or US
customary units are displayed on the boiler.
The following settings are available:
• 00: °C, l/min (metric units)
• 01: °F, gpm (US-customary units)
Default setting is 01.

10.3.2 Second service level

Service function 8.A: Software version
The current software version is displayed.
Service function 8.b: Code plug number
The last four digits of the code plug number
are shown.
The code plug determines the appliance
functions. If the appliance has been converted
from natural gas to LPG (or vice versa), the
code plug must be replaced.
Service function 8.C: GFA Gas burner control unit status
Internal parameter. If you are on the line with Bosch
Technical Support you may be asked for this number.
Service function 8.d: GFA Gas burner control unit fault
Internal parameter.
Service function 8.E: Restore boiler to factory settings
This function allows resetting all parameters of the boiler
including all service functions to their factory settings.
B Press and hold the service button
The display shows a code such as 1.A (first service
level).
B Press and hold ECO button and key pad lock button
simultaneously until a service function, e.g. 8.A, is
displayed (second service level).
B Repeatedly press the key pad lock button or ECO
button until service function 8.E is displayed.
B Press and release the emissions test button
The emissions test button
shows 00.
Copyright (optional information)
until it illuminates.
.
lights up and the display
Heatronic boiler control settings | 73
B Press and hold the emissions test button
display shows .
All settings are reset and the appliance restarts with the
default settings.
B Reset altered service functions to the settings recorded
in the commissioning log (
Service function 8.F: Permanent ignition
NOTICE: Ignition transformer damage.
B Never leave this function on for longer than
2 minutes at a time.
This function enables permanent ignition without gas
supply to test the performance of all ignition related
components.
The following settings are available:
• 00: Off
• 01: On
Default setting is 00.
Service function 9.A: Constant mode
This function sets one operating mode permanently
( Service function 2.F: Operating mode, page 68).
The following settings are available:
• 00: Default mode: the appliance runs according to
control settings.
• 01: The appliance runs permanently at minimum output.
The display shows 9.A.
• 02: The appliance runs permanently at maximum
output. The display shows 9.A.
Default setting is 00.
Service function 9.b: Current fan speed
This service function allows you to display the current fan
speed in revolutions per second (1/s).
Service function 9.C: Current boiler output
This service function displays the current boiler output (in
percent (%)).
until the
page 97).
6 720 643 068 (2011/06)