Good afternoon

I have just moved into a house with an in-ground pool using a CompuPool CPSC. It is approx. 4 years old and had been working fine till this weekend when I switched it off to re-arrange power cords. I am now unable to power on the device. It has power going to it, the unit starts up OK (all lights come on and displays the unit model number) but then powers off - the LED screen displays "POWER OFF" and the time. The power button is totally unresponsive.

Any help would be appreciative.

Thanks.