-Have you attempted to reset the boiler (where applicable) .
-Had you turned power to the boiler off and back on (emergency switch, service switch, power button on the display, Mascot FT) after your power was restored?
-Have you unplugged the boiler from the power outlet (Mascot FT) waited a minute or so and plugged it back in ?
-If you have a ground fault circuit interrupter outlet that the boiler is plugged into (Mascot FT) , did you reset the outlet as well ?
-Can you plug a lamp, radio or some other device into that outlet and test the outlet?
-Is the display screen (Mascot FT) displaying anything ? Errors, temperatures, etc.
-Is the backlight on the display screen lit ?
-Was your gas supply also disrupted ?