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F) Accessing 'Service menu'
The service menu has seven modes to select from (refer to 'Timer Functions' on
page 7). This function allows easy identification of problems occurring with the unit
by the service technicians (see details on the table below for Product error codes).
Each mode is accessed as follows:
Select Appropriate Service Mode
i
Error Codes
ii
Boiling Temp
iii
Calib Reset
iv
Temp. Override
v
Software Version
vi
Temp Show ON/OFF
vii
TB Treq
Product Error Codes
i) Accessing Error Codes
1. Press and release the (Prog) button until 'Service' is displayed on the screen.
2. Press and release the (Accept) button to confirm selection. 'Error Codes' will
be displayed on the screen.
3. Press and release the (Cancel) or (Accept) button to revert back to the main
menu.
Note: An error code will be automatically cleared from the display when the fault
relating to that error code is rectified and the BWU is re-powered. Refer to
the error code table below for error codes and their meaning.
Error Code Table
ERROR
Hot Thermistor Fault O/C- S/C
Chiller Unit Cold Thermistor O/C or
S/C (Normal)
Heating Triac S/C – Uncontrolled
Temperature Rise
Expired Filter
Calibration Time Out
CODE
ERROR
A*
Low Level Probe Fault
B
High Level Probe Fault
Water Heating Fault –
C*
Element Not Heating
Watch Dog Software
E
Reboot
Rapid Temperature Rise –
G
Empty Tank
11
CODE
H
J
L
M
N
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