Very often we will see the fault reported by owners that their cooker or more accurately, the oven on their cooker of just a straight built in oven will cut out when in use.
Ordinarily this is when the oven heats up, often appears to reach the desired temperature but then from the user’s perspective, just shuts down and can appear to be completely dead.
Ordinarily there is a simple enough explanation for this, so long as you apply a little logic and know what you’re looking for.
We’ll walk you through it.
Many modern ovens be they built in or a part of a freestanding cooker or range cooker will have some form of overheat protection in them by way of a safety thermostat that is designed to cut the power to the oven, usually totally, should the oven get too hot.
This is completely correct and is actually a safety feature designed to protect you and as such no attempt to bypass this function should ever be made.
The reason being that, if this has happened to your oven then there will inevitably be a reason for it and, that underlying problem must be solved or it raises safety concerns.
It is possible that this can be caused by the safety thermostat itself being faulty and that is the first thing most repairers will check the operation of to ensure that this is okay. Largely this is to make sure you stay safe.
New Appliance Note
If it’s a new oven, cooker or range cooker, then the next thing (maybe the first if it’s obviously an issue) the repairers will look at is ventilation.
To many this might seem obvious but, if the airflow to the oven is restricted and/or not in accordance with the installation requirements then you can get a heat build up that can cause the safety thermostat to be tripped.
Essentially the oven cavity is getting hot to the point of overheating and becoming potentially dangerous in some manner so, it’ll just shut itself down.
The only way to solve that in such cases is to sort out the installation. No other option and even if you swap the machine out for another model or even brand you’ll usually find the replacement acts in exactly the same way.
If the oven thermostat is not cutting out as it should at the temperature that you set then most often the oven will just heat and heat.
Eventually the temperature will build up and become dangerous so again, the safety thermostat will just trip the whole lot out and shut it all down.
If that’s the underlying cause then changing the oven thermostat is the only course of action.
You can get an element causing this but, it’s more like the element has some sort of earth leakage fault on it and the oven is actually tripping the whole lot out. Normally though this will trip the house RCD rather than just the oven.
Identifying and replacing the offending heating element is the only cure.
Oven Switch Faulty
Not to be expected for this type of fault at all.
Usually a faulty oven switch will be evident as soon as a function is selected, it won’t bug out during use so it wouldn’t be a thing to look for other than an outside runner if all else proves okay.
Now this can happen.
What happens we think is that the oven clock heats up as the oven gets hot and if there’s a dodgy joint on it the connection breaks and the oven dies.
Remember that the clock is normally a big mains switch on a fancy timer so it can cut all power to the oven.
This is not at all common but, it’s been seen on occasion and worth noting as a possibility after the common stuff is eliminated.
And the clock talk brings us nicely to electronically controlled ovens.
These will use thermistors, safety stats, electronic boards and more so things can get a lot harder with them simply as there’s more to look at and, often it’s not as easy to diagnose where the problem lies.
Of course if the manufacturer/brand owner has given us access to test routines and fault code information then the task is a million times easier but, a lot of them do not allow access. All you can do is pay the ransom they demand to repair it or, complain to them.
Fault Diagnosing Notes
As usual and as is the case with many faults the only way to find out what’s causing your oven to cut out is to sit down and logically work out where the problem lies.
Above we’ve covered just about all the main causes of that to happen but, you will need to figure it out for yourself step by step, there’s no shortcuts to it.
If you get stuck or need specific help or advice please use the forums where the repairers will assist if they can.