just recently bought the 110 rangemaster in green, but when we fire up the gas hobs they only go to simmer or less than simmer, we can turn them down but they dont go higher than simmer anybody got any answers for me?
are you trying to run a lpg(bottle gas )version on mains gas if so this is not possible without jet conversion back to nat gas.
or you may have a problem with the bayonet hose not being connected and locked properly which can give a poor supply pressure.
or you have a poor supply pressure to the cooker in the first place.
i doubt it is a problem with the gas taps as they are all giving you the same fault
We may have found other answers which could help you.