Gas oven flame yellow not blue like grill and hob rings.Flame is floppy and laboured and doesn't shoot up when turned up,could this be the thermostat Regards F Daley

When you turn knob on for oven push it in and try lighting it if it lights keep it pushed in for 15 seconds then release

there is a brake in the wire the censer

Have you checked for leaks in the line(s). Yellow would indicate air infiltrating the system.

Same problem with my hob. I adjusted the small jets to their lowest setting in order to be able to simmer -impossible on the bigger jets. The problem is the vents underneath the hob. These can't be closed off so the problem appears to be in the design. The solution I have to use while I save up to by a decent German model is to open and close the cupboard doors underneath the hob very, very slowly.

If the flame stays low from the beginning then it will be the flame safety device (fsd) not opening on sensing the flame and will require replacement by a gas certified engineer.

I have a delongi oven and hob hob is working fine but the oven isnot im turning the nob on the front of the oven and ignition on lighting is fine after I release the knob on the front the supply turns striaght off no flame no gas nothing

stoves df50 gas hob lights,but only gives a flame,help

no,this flame is like this because either the flame orfice is dirty or the burner is dirty or the unit isnt getting enough air mixture to completely burn the gas and this will lead to a yellow flame instead of the normal blue flame

Hi

If it won’t fire then it is possible that the oven control is not sending gas for the pilot light. The pilot light works but no main burner ignition - possible pilot assembly is dirty and the pilot flame is too small, safety valve and thermocouple is faulty, the bulb from the safety valve is out of position and the pilot flame is not touching the thermocouple bulb. Some ranges use a standing pilot light ( small flame is on all the time ) while others use an spark ignition to light the pilot light flame and the pilot light flame heats up the thermocouple bulb to allow the main gas to flow through the oven burner.
The flame needs to heat the bulb up enough to tell it to open the gas valve. Several things can go wrong here that keep this from happening:
The pilot flame may not be hot enough, usually because the flame is yellow instead of pure blue or is too small. The cause for this is usually a dirty pilot assembly. The pilot assembly would either need to be cleaned or replaced.
The thermocouple bulb may not be positioned properly in the flame. You can't heat the bulb properly if it's not in the pilot flame! The thermocouple bulb needs to be in the upper third of a pure blue pilot flame--that's the hottest part of the flame.
The thermocouple itself may be burned out. It happens. It's an internal part of the gas valve so, no, you can't just change the thermocouple bulb separate from the gas valve.
But when you turn on the oven or the thermostat calls for heat, the pilot flame gets bigger and jumps down so it can heat up the thermocouple bulb. This extra gas to increase the pilot flame size comes from the thermostat.
If the pilot flame jumps upwards or just gets bigger, but doesn't shoot down, then you need to replace the pilot assembly.
If the pilot flame size does not increase or jump down when turning on the oven thermostat, then the problem is the thermostat not sending enough gas to the pilot assembly. It's also possible that the pilot gas supply tube has a hole in it somewhere.
One final point on the spark-assisted pilot ignition systems. The spark comes from the spark module--the same module that sends spark to your surface burners to light them up. If you're not getting a spark when you turn the oven on, then there are several possibilities:
There could be a problem with the switch in the thermostat. You can confirm this by doing a simple continuity test of the thermostat contacts. If you don't read zero ohms when you turn the switch on, replace the thermostat.
The spark module could be bad. You'll need to measure the voltage at the oven terminals of the spark module when you turn on the oven. If you get 120v but no spark, it's probably a bad spark module. Replace it.
Could be a bad spark wire or broken electrode.

Please do rate the solution and revert for further assistance.


Thanks
Rylee

Flame saftey device control valve stuck in open position that why main gas is coming other wise flame should be max 2cm long after flame saftey device heat up and bellow expand and main valve should open