We may have found other answers which could help you.
Click here for Leisure Rangemaster 55Convert lpg to electric Rangemaster cooker?
Rangemaster 110?
Bottom oven won't stay on unless you keep holding on to button ?
How to keep a rangemaster 110 gas top from not letting me do?
Rangemaster 90 oven will not light?
Re setting clock on Rangemaster 110 gas cooker?