My Rangemaster 110, second oven ignites but does not go to second stage and gets a bigger flame. It just stays on low flame.

SOURCE: Gas oven

Its the flame failure device faulty (FFD)

SOURCE: Oven will not respond

try pressing the oven regulator knob for a while 3 to 5 seconds on ignition its a safty thing so kids cannot gas themselves all cookers have them. you have to hold it in.

SOURCE: Rangemaster 110

Reading the user manual, it states that the flame initially comes on low, until it is "sensed" by the flame sensing device. This to me sounds suspiciously like the flame isn't being sensed and so never gets increased to the normal level.
I've not had time for a proper look at it.... but from a quick glance this morning this looked like a "flame rectifier" probe next to my burner (as we commonly use in boilers to sense if the gas burner is lit). This is just a metal probe. They send a high-ish AC voltage signal (Sine wave) from it, through the flame, to the earthed metal case. The flame acts like a diode (yes it really does work !) and simple electronics detects the change in the applied signal (rectified) due to the flame. I know from personal experience they (the probes) get coated with crud (carbon, etc) and need a good clean. I suggest you try cleaning both it and the metal area opposite it. If necessary the probes metal tip could be GENTLY rubbed with very fine Emmery cloth, etc, if badly coated.
Other than that, if it is sensing the flame, then it must be the gas control device (solenoid valve ?) that is jammed, blocked or just defective.
Simples......

SOURCE: Oven doesn't stay on

You need a new thermocouple. This is a safety device which holds a small gas valve open when a flame is detected. It stops unburnt gas building up in the oven. I would seek professional advice from a gas safe registered engineer. Check www.gassafe.co.uk for an engineer in your area. Good Luck

Karl Wright

• 1653 Answers
• Posted on Oct 02, 2009

SOURCE: my rangemaster cooker lights on ignition but only

It will most likely be the thermostat that is faulty and will neeed replacing. If it wwas the safety device then you would not get any gas at all.