Among people’s favorite kitchen appliances is the cooker hob. Any kitchen would benefit from having it.  That is also highly practical. The use of gas stoves is relatively simple. You only need to turn on the gas and start the fire to finish. Your gas stove, however, may occasionally experience problems. Gas Safe Register UK says that it is vital that your cooker hob should be serviced annually to prevent any issues that are detrimental to you and your home. And one of a gas stove’s most crucial components is the ignitor. It is employed to start the flame on your stove. The hob cannot be used if the ignitor is not functioning properly.


In this post, Yeobuild HomeRepair discusses both the various signs of a faulty cooker hob as well as signs on why an ignition on a gas cooker hob is not sparking.


what are the signs of a faulty cooker hob

What are the Different Signs of A Faulty Cooker Hob?

  • The stove will not light up

Cooker hobs that won’t light up are a common indication that the ignitor is defective; in this case, either the ignitor needs to be changed or the stove as a whole. You must understand how an ignitor is meant to operate in order to determine whether it is defective in a gas stove.


The ignitor must strike two places on the bottom left and right side simultaneously in order for the stove to ignite. If there is firm contact between the two places, the stove will light up. The ignitor is broken if the stove doesn’t light and there are no sparks. On a gas stove, there are a few telltale symptoms that an ignitor is malfunctioning.


stove will not light up

  • If the gas range makes a clicking sound

One indication that the ignitor is damaged is if the gas range repeatedly switches on and off with a clicking noise.


  • If the flame spreads out

The flame spreading out is the second indication. The third indication is that the ignitor can be defective if a blue flame is visible. It should be changed if a defective ignitor is suspected. The old ignitor’s replacement must be an exact replica. Your ignitor is probably the source of your gas stove burner’s inability to ignite. The ignitor may burn out if it fails, which will prevent it from lighting your burner, or it may stop functioning altogether.


flame spreading out faulty cooker hob


On Faulty Cooker Hobs: Why Is the Ignition on My Gas Not Working?

  • Due to a lack of oxygen

There is probably not enough oxygen present when a gas does not ignite. The gas may be combusting on the side of the cylinder where it is not properly mixed with air if gas is being produced but not being ignited. The process of combustion involves three components: fuel, an oxidizer that is not oxygen, and an oxidizing agent like air oxygen. The octane rating of the gasoline affects the temperature at which the gas ignites. The fuel won’t burn if the temperature is too low to cause it to ignite.


  • A dirty spark plug

There are numerous causes for why a cooker hob won’t ignite. The most typical issue is a dirty spark plug, which can be visually inspected. A commercial cleaning or detergent can be used to remove the carbon coating on the plug’s outside. The voltage necessary to ignite the fuel cannot be produced by a spark plug that is plugged or fouled.


  • The coil

The coil is the second most frequent issue. By removing one plug wire at a time and powering the other coil to verify if it is operational, the ignition coils can be examined. The coil is good because it is performing as it should if the spark jumps to the following coil. The ignition coil is malfunctioning if the spark does not jump and the spark plug is in good condition.


  • The needle valve may be clogged with dirt

Moreover, a dirty needle valve, gas line, or gas filter may prevent a cooker hob from starting. The spark plug can also be wet or not work at all.


  • A dirty hob

Your ignition issue could be as simple as food and grease that have accumulated over time clogging the burner, valves, and ignition. Make sure the gas supply is turned off before investigating, and then look for anything that might be affecting your ignition. If issues still exist after a thorough clean, you’ll need to explore elsewhere to identify the problem’s root cause. Invest in some suitable hob cleaning supplies that will help you avoid damage to avoid this problem.


  • Faulty ignition system 

Your ignition system’s performance may be affected by a variety of problems, such as the following:


  • Electric Circuitry: If your ignition is powered by electricity, there could be a number of problems preventing it from working properly, such as a malfunctioning ignition switch, unsecured wiring, or a broken circuit breaker.
  • No Spark: Switch off the gas and check your cooker’s ignition button. Your igniter has to be replaced if there is no clicking sound and no visible sparks.


  • Gas supply 

If there doesn’t appear to be a problem with the ignition parts, the gas supply may be the source of the issue. You can check the following items to determine whether or not this is the cause of the problem:


  • Inspect the upward-facing gauge on the tank’s top when it is empty. This indicates that it is empty if it is at 5% or less.
  • Isolation Valves Off: There are typically two valves, one outside your property and one at the gas tank. Both of these will affect your supply if one of them is turned off.
  • Excess Flow Valve Engaged: This safety feature will kick on in the event of a rapid gas surge and will also need to be manually deactivated whenever work is being done on the tank. If so, it will need to be reset in order to restore the supply.



On Faulty Cooker Hobs: How Do You Fix a Cooker Igniter?

A non-sparking igniter gas cooker is not necessarily a sign that the stove is damaged. There are several possible causes for this. Sometimes the problem is that the pilot must be kept burning because the spark simply burned out. In other instances, the problem is that the stove hasn’t been lit or switched on, and the pilot won’t operate until the stove is.


A lot of times, the grates of an electric stove will become too dusty and worn down such that they will prohibit the electric current from igniting a spark. Fixing this is rather simple.


  • Check the connections

The connections on the stove should be checked first. Any stovetop grates, accessories, and potentially loose things should be taken out from underneath the stove.


  • Remove the stove from all electrical outlets.
  • Check the wires for frayed ends.
  • Clear the path of any debris or impediments before using the igniter.
  • Go over the igniter and inspect it for any cracks.
  • Light the burners by plugging the stove into an electrical outlet.
  • Turn off the stove if the igniter doesn’t start sparking again.
  • Check to see whether there is a spark when you touch the two wires.


  • Disconnect the stove

Disconnecting the stove from the stove pipe is the initial step. The tubes must first be disconnected before the screws holding them in place are removed.


  • Remove the front cover of the stove

The stove’s front cover can then be removed by laying your palm on it and gently bending it back. By moving the front cover back and forth, you can remove it. The stove door ought to have a coil spring attached to it once the cover has been taken off.


  • Expose the gas nozzle

To reveal the gas nozzle and burner tube assembly, move the coil spring out of the way.


  • Remove the nozzle and burner tube

Unscrew the screws holding the nozzle in place to remove the nozzle and burner tube from the stove. As the nozzle is the problem’s origin, properly clean it. The stove should spark nicely once you reassemble it.  


  • Locate the two terminals on the back of the stove

Determine which terminal is the hot wire and which terminal is the ground wire by finding the two terminals on the rear of the stove. Cut off the stove’s power.


  • Locate the wires coming out of the terminal block

Find the wires coming out of the terminal block on the stove’s back. Create an extension cable with a plug on one end that will fit into the terminal block and a wire long enough to reach the outlet on the other.


  • Plug the extension cord into the outlet

Make sure the ground wire is connected to the outlet marked with the ground sign before plugging the extension cord in. Connect the extension wire to the terminal block by inserting it into the outlet marked with the ground symbol.


  • Turn the power on to the stove

Switch on the stove’s electricity. Your cooker is ready to use if the stove begins to spark.