try following
RED LED CONTINUALLY FLASHING
This denotes that the batteries in the Digistat unit are approaching the end of their life (see Battery
replacement).
RED LED CONTINUALLY ON
This denotes that the receiver has been unable to receive a radio signal from the Digistat unit. This
may be caused by the batteries being dead (see Battery replacement) or some temporary interference
with the radio signal.
To re-send and test the signal, go to the Digistat unit. If the flame signal is visible on the display, press
the “–” button until it disappears. If the flame symbol is not visible, press the “+” button until it
appears. If the radio signal has been successfully transmitted and received, the red LED will flash for
seven seconds then go off. If the red LED is still on, “learn mode” may have been selected by accident.
To correct, open both Digistat battery drawers and wait for the display to fade, close the right hand
drawer followed by the left and re-programme the Digistat with your desired time and temperature
settings.
If the red LED is still on, there may be a poor batery connection inside a drawer (perhaps due to a
leaking battery). Clean contacts. If problem is not solved the fault will require the attention of a heating
engineer/electrician.
MANUAL OVERRIDE
In a fault situation, the heating can be manually switched on and off by using the “OVERRIDE” button
on the receiver, even though the red LED will stay on until a satisfactory signal is reinstated.
Once the receiver receives a satisfactory signal again, it will automatically reset itself for normal
operation.