Scantronic 9448+ style mains power LED is pulsing

[Alec]

Hi hope you can help i have a Scantronic9448+style and in the night turned light on and tripped out but since resetting the top left LED which normally glows is pulsing ! I’ve tried resetting without success .

Any advise would be appreciated 

thanks in anticipation 

[sixwheeledbeast]

When was it last serviced?

Power LED flashing on most systems indicates power failure or battery low voltage