HOw can I replace a burner FSD probe in my Rangemaster cooker?

SOURCE: how to fit a flame failure device to rangemaster 55

the part that you need is the oven ignitor, located nest to the oven burner. that part gets hot to open the gas to the burner, that will make the oven work again.

SOURCE: RANGEMASTER 110 Cooker FLAME FAILURE DEVICE fitting

My progress to date (20090127):
1 Turn off the gas supply to the oven
2 Turn off the electricity supply
3 Remove the oven linings
4 Remove the storage drawer
5 Remove the three screws holding on the bottom trim and the trim
6 Crank up the front roller
7 Pull out the oven carefully making sure the gas hose and electrical lead are long enough and not caught
8 Working from the rear of the Rangemaster, for the right-hand oven, remove the four screws on the corners of the large cover plate at the back of the oven about half way down on the left-hand side as viewed from the back.
9 Remove the cover plate.
10 Go to the front of the oven. Above the burner assembly, towards the left is a thin metal rod running front to back. This is held in place by a clip at the back and by the hole in the metal frame at the front. Remove the metal clip at the back using a pair of long-nosed pliers. Retain the clip.
11 This should release the metal rod (flame sensing device) and you should be able to push it through the hole and out at the back. It is attached to a long copper wire.
12 Go to the back of the range. You should be able to work the wire back through the hole in the rear metal plate and up to the gas valve. The wire is held in place at the gas valve by a bent clip on the rear right. Carefully bend this clip back towards the oven to release the wire.
13 The wire goes down under the gas valve and to a threded bolt end into the bottom of the gas valve ad the bolt is held in place using a locking nut.
14 Remove the locking nut using a small spanner. The threded bolt should now turn, with the aid of long-nosed pliers.
15 The next trick is to remove this threaded bolt on the end of the copper wire and I have not figured out how to do that. It will unscrew a good way but becomes tight and will not come out, as though something inside the valve is holding it in place. Could it be that the flame sensing device has to be removed and inserted from inside the gas valve? If so, what a daft piece of engineering this is.
16 HELP.

SOURCE: grille element shorted,now no power to both ovens

good day,
hope this link below will solve your problem.

ovens