I didn’t get any offers of help but having now replaced two of the simmerstat controls on my Hotpoint EW91, others may find the following of help. It is quite straight forward.
Pull off the 7 identical switch knobs
Pull out the 6 timer buttons
Remove the 2, or 3, black screws from under the front edge of the ceramic hob
Remove the 2 screws on each front top side edge (the longer of which is nearest the front). I suspect only the first screw need be removed.
Remove the 3 screws at the front and rear edges of each side panel. Those at the front are visible when the doors are open). Note which side is which and the top edge to help in reassembly! You don’t need to remove the rear panel though it might be necessary to remove one screw at the top on each side.
Remove only the front and rear screws from each side of the hob. The hob can be lifted off and moved back a few inches.
Remove only the top screw holding the end piece on the glass control pane from each side.
The glass pane and brackets should now slide off the front. If you want to clean the glass you can remove the screw at each end to separate the pane from the end trims. I didn’t remove the pane from the bottom trim.
Write down the arrangement and overlapping of the rotating dials and pull them off for cleaning. Clean and dry the dials and knobs.
Each of the controls is held on by 2 cross-head screws. First remove the loose washer from under the rotating dial. Do one control at a time, one wire at a time, after first noting which terminals were used.
Reassembly is the reverse, but be sure to pull the front of the rotating dials through the holes in the glass.
SillyBilly
November 2007