7
PROGRAMMING YOUR ST9400C
Reviewing the Programme Times
To review your hot water programme, move the slider to the HOT WATER position. 
To review your heating programme, move the slider to the HEATING position.
To review the programme times, press the 
  button  repeatedly.  The  appropriate 
ON and OFF markers will be displayed to show you which time is being reviewed. 
Any  of  these  times  can  be  adjusted  by  using  the      or    buttons,  and  then 
confirmed using the   button. Remember to return the slider to the RUN position 
after reviewing is complete.
Modifying the Hot Water Programme
The hot water programme has three pairs of ON/OFF switching times per day. Each 
time can be  set  between  3.00  am  and  2.50 am (on the  next  day)  to  allow  you  to 
programme the hot water to stay on past midnight, if required. 
a.  Move the slider to the HOT WATER position. ‘SET HOT WATER’ will show briefly 
to verify this action.
b.  ‘SET ON-TIME 1’ will then be displayed and the time setting for the first ON 1 
time for MONDAY will now be flashing to indicate it can be changed. If you do 
not wish to  change the time, press the green 
 button and  move to the next 
step. If you do wish to make a change, use the     or   buttons to change 
the first ON 1 time. Each press of the button will change the time by 10 minutes. 
As soon as the time has been changed, the message ‘ON-TIME 1 OK?’ will be 
displayed. Press the green   button to confirm the time is correct and move to 
the next step. ‘SAVED’ will be displayed for a moment to confirm that any change 
has been saved to memory.
HOT WATER HEATING
DAY/TIME
HOT WATER
HEATING
RUN
HOT WATER HEATINGHOT WATER HEATING