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how can i clear the alarm?

hi can someone help me i had to change the batteries in my wireless system thermostst once done i went up stairs to cheack the bolier and noticed that the red alarm led was on on the wireless system tried reseting the boiler still cant reset it the hot water is still working but cant get the heating to kick in would be very grateful if anybody could help me out
craig, January 2012
batteries out

turn mains power at receiver off

wait 10 seconds

turn mains power back on

press and hold the 2 buttons until the red light flashes 7 times

batteries back in

sorted

Ian, January 2012