Glowworm Spacesaver 50 Electrical problems?

Hey,

I have a Glowworm Spacesaver 50 boiler, and the water pump/control unit.

As of 3 weeks ago, the control unit stopped functioning (and as far as i am aware there is power getting to the boiler because it is still lit... The pump is also silent (There is no control unit of course), but i would assume it would "buzz" or "hum" quietly at least if it was plugged in because of how old it is.

Is there a way to find out if the electronics in the boiler have malfunctioned? I am going to turn off the gas and try and relight the boiler to see if there is power to it, but is there any other ways of testing the electrical supply?

Cheers