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© Baxi Heating UK Ltd 2012
Service Due Function (SD) - Description
When this function is activated ‘Sd’ is displayed after a pre-determined time (Factory Set at 11 months) informing the user
that the 12 month service is due shortly. It is only active whilst there is power to the boiler. If power is interrupted the
counter continues from where it stopped previously.
The boiler continues to work as normal and the display flashes 'Sd' for 3 seconds, every 10 seconds.
It can be reset, disabled and Service Time changed by alteration of parameters.
IMPORTANT NOTE: DO NOT ADJUST ANY OTHER VALUES OR PARAMETERS AS IT WILL AFFECT THE
OPERATION OF THE BOILER
To reset the SD Function
• Once the annual service is complete the SD Function must be reset so the next service can be indicated.
• Press and hold the ‘CH -ve’ and ‘CH +ve’ buttons together for 6 seconds to enter the ‘TSP Menu’. P01 will be
displayed.
• Use ‘CH +ve’ to scroll to ‘P22’.
• Press the ‘ip’ button to toggle into the ‘P’ value.
• Change ‘00’ to ‘15’ (15 is the SD counter reset code).
• Press the ‘ip’ button to toggle back to to lower parameter menu.
• Press the reset button ‘R’ to exit the ‘TSP’ menu.
The next SD message will be displayed in 11 months.
To disable or change the SD Function Time Period
• Press and hold the ‘CH –ve’ and ‘CH +ve’ buttons together for 6 seconds to enter the ‘TSP Menu’. P01 will be
displayed.
• Use ‘CH +ve’ to scroll to ‘P22’.
• Press the ‘ip’ button to toggle into the ‘P’ value.
• Change ‘00’ to ‘22’ (22 is the code to access the higher parameters - P41 and above).
• Press the ‘ip’ button to toggle back to lower parameter menu.
• Use ‘CH +ve’ to scroll to ‘P50’.
• Press the ‘ip’ button to toggle into the value for ‘P50’.
• The value range is 6….25:-
6….24 = months elapsed before ‘Sd’ is displayed.
25 = function disabled.
• Choose the desired value and press the ‘ip’ button to confirm.
• Press the reset button ‘R’ to exit the ‘TSP’ menu.
6.0 Service Due Function
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