30
User Instructions
GB
Resetting the unit
Partial reset: Press RESET (used to restart micro-computer) if display 
freezes for any reason. This does not reset any programme, clock or 
date. It is recommended that this is done at time of installation.
User full reset: Press RESET whilst holding down PROG button. This 
resets event times and any User Advanced Programme setting, but 
does not reset time or date.
Installer full reset: This is only available to the installer. In addition 
to the above all of the Installer Advanced Programming settings are 
returned to factory settings, however, time, date and service due date 
are not reset.
Service Interval Timer
 If the property is owned by a landlord he 
may, for gas safety reasons, have instructed 
the installer to set the service interval timer.
 If set, 28 days prior to the service due date, 
a visual and audible warning will start each 
day at noon. The audible warning will last 
for 10 seconds and will be repeated every 
hour until a button is pressed to cancel it. 
If cancelled the alarm will recommence the 
following day at noon.
 If the boiler is not serviced before the due date, a visual and audible 
warning will start each day at noon. The audible warning will last for 
1 minute and will be repeated every hour until a button is pressed to 
cancel it. If cancelled the alarm will recommence the following day 
at noon.
 In addition, all overrides and programming buttons will be disabled 
and the heating may operate for a limited amount of time each 
hour.
 The installer may cancel or reset the service interval timer as part of 
the boiler service.
 This is a gas safety feature that can only be accessed by an installer.
Service Interval Date