electrolux built in oven, EOC68000, fault code F 8?

Hi, have just used the function of OVEN CLEAN, after fitting a new door seal and switching on the following has occurred.
1. Closed the door, heard a catch click!
: door will not open, small catch at the top upper right section. This can be manually unclipped.
2. Power switched on, initially appears start-up is fine!
: programme selected, no oven light, or oven start up even though, display show all was well, tried to open door. NOT PERMITTED!
: after a short time F 8 appeared on the clock screen!
DOES ANYONE KNOW THE FOLLOWING?
1. What the F 8 code relates to.
2. Repair options?
PNC No. 944 182 820 00
Electrolux oven EOC68000