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3.6 Change PIN
If you intend to change the PIN code, please ensure you take a note of the new code that you are setting.
The process for changing the current PIN code is as follows:
Enter Installer Modes (as described on Page 8) and navigate to CHANGE PIN mode. In response to the query 'CHANGE PIN OK ?' press the
a.
button to enter CHANGE PIN mode.
The message 'ENTER PIN' will now be displayed, along with the 4-digit entry code format 0---. The first digit will be flashing, to indicate it can
b.
be changed. Use the
c.
At this point the first digit will stop flashing and the second digit will proceed to flash, indicating it can be changed.
d.
Proceed in this way to enter the 4 digits of the old PIN code. Upon confirming the last digit, if the PIN was incorrect, the message 'INVALID' will
be displayed, and then the whole process will start again from step b. above.
If the PIN was correct the message 'SET NEW PIN OK ?' will appear. As before, use the
e.
confirm. Upon confirming the final digit, the message 'PIN SET' will be displayed, and the new PIN code will be held on the screen for 5 seconds,
to give you time to note it down.
f.
After setting the new PIN code, you will be taken back to the SETUP MENU.
3.7 What the User Will See When a Service is Due
If the advance warning has been configured, the screen will flash this message every few seconds, and the User should
telephone to arrange a service call before the final date when the service is due.
When the boiler service is overdue the screen will keep flashing the words 'SERVICE DUE' every second.
If the NO ACTION option has been selected, the unit will continue to operate as normal and the real time will continue
to be shown.
If the SWITCH OFF or PROMPT Actions have been selected, the 'SERVICE DUE' message will flash and the word "OFF"
will appear on the display. The boiler has been switched off to ensure the safety of the User. A service appointment
should be arranged immediately.
In PROMPT operation, the User can obtain limited use of the boiler by pressing the EXTRA HOUR button. Each button
press will allow operation of the boiler for 1 hour at a time, and the screen will display the message 'On 1h', as shown.
A service appointment should be arranged immediately.
If a contact telephone number has been programmed into the ST9120C, a message will appear on the LoT™ Display
indicating the number that should be called.
3.8 Resetting the Service Timer Function
If the Service Timer function is enabled you will be required to reset it after the boiler service has been carried out.
The process for resetting the Service Timer is as follows:
a.
Enter Installer Modes (as described on page 8) and navigate to SET SERVICE mode. In response to the query 'SET SERVICE OK ?' press the
button to enter SET SERVICE mode.
b.
If you no longer require the Service Timer, disable it by setting parameter AL to 0 and confirm with the
c.
If you still require the Service Timer, set the number of days until the next service is due using parameter d and confirm with the
d.
Whilst in SET SERVICE mode, use the opportunity to change any other service parameters if required.
e.
Exit by moving the slider to the next position and back again to RUN.
or
buttons to set the first digit, and press
to confirm the digit.
or
12
buttons to set the digits, and the
button.
button to
button.
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