The oven temperature indicatot lights for both ovens on my Rangemaster Classic 90 Dual Fuel cooker do not work. Does that mean the thermostat in both ovens need replacing
No, is your oven still heating?? If so it is probably just your indicator led....otherwise if no heat then it could be a Thermostat fault, both not both thermostats...best thing to do if you are unsure is call a professional for service