While you wait for answers, we may have found some information which could help you.
Success
Message
Rangemaster110?
timer?
Retrieving object behind Rangemaster cooker?
where can i get a hotplate for my rangemaster 55?
Re setting clock on Rangemaster 110 gas cooker?
Bypass timer?
Restarting after power cut?
Ignition Fault?
Convert lpg to electric Rangemaster cooker?
Bottom oven won't stay on unless you keep holding on to button ?
Gas oven does reach working setting?
How to keep a rangemaster 110 gas top from not letting me do?