Hat grade fuse should be used on my Stoves EL716 double oven cooker?

I would suggest the wrong wires were cut off and joined. If the ground wire touches the power wire a fuse or circuit breaker will blow.. Before you do anything more make sure the curcuit breaker is not blown. If it is reset it and turn the cooker back on. If the breaker blows again then it is wired wrong.

You obviously have a power loss somewhere. The oven will not work unless a time is set on the clock. I would suggest you have problem with the feed to the cooker which an electician should be able to check it out. If anything else is wrong on the cooker, it shouldn't reset the clock.

The clue will be when the rcd trips out. If everything is switched off on the cooker with the exception of the clock when you power it up and then it trips out, it could be in the wiring to the oven from the control switch and or the wiring in the oven. The only way you are going to find this is to take the oven out of the housing and test the wiring, isolating components until you find the problem.

I have posted how to use the timer on the 720 on other solutions. Try that to see if it works.

The hob is normally totally independent of the oven. What is actually working or not working on the oven? i.e. does the grill still work, is the clock OK and can you set it, or is everything totally dead?

I have the same problem. After anywhere from 5 to 30 minutes the oven(s) switch off and the light and clock start flashing - I have to switch the cooker on and off to start using the oven again.

Any resolution please?

I can only say for the 720. You have to remove the whole oven from the kitchen furniture and then unscrew/remove the top and side panels. You will then see the springs on either side of the door.
Important. Remove the inner glass panel from the door first, before you release the springs.
To remove the springs, ensure the door is closed and then unhook them. You then should be able to remove the door frame.

I have a Stoves Newhome EL716 double electric oven and last night, it just lost all power and stopped working - no grill, oven, lights, clock or anything. Can anyone tell me what this could be please? Thank you.

I have a power supply for one and also a front panel dont know if this helps.

there is a safety stat/fuse on top of the oven exterior i think you will find that it also has blown. Make sure you have isolated the appliance at the fuse board first though, Good Luck