How To Troubleshoot An Oven Control Board

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Symptoms of a Bad Oven Temperature Sensor

Ovens are great additions to any kitchen.  With the help of an oven, you can cook up delicious roasts, prepare healthier alternatives to fried foods, and even bake dessert favorites. 

Whatever initial cost you may have to pay to get an oven inside your home will immediately be made worth it by how often you will end up using this kitchen appliance. 

Of course, similar to any other oft-used appliance, ovens can break down. After some time, you may notice that certain components of the oven are no longer working as they used to. It may not even be heating up the right way.

Those issues could very well be related to a malfunctioning oven temperature sensor and they could also be symptoms of an even larger issue. To be more specific, your oven control board may be on the fritz. 

 

What Is an Oven Control Board?

Before diving into what happens when an oven control board goes haywire, let’s first discuss what it actually is.

The oven control board is a staple of modern electric ovens and its main function is to manage the flow of energy into the different components of the appliance that are responsible for providing heating. When you need to adjust how hot your oven is, you will make use of the oven control board.

You also use the oven control board whenever you are simply setting the temperatures you need for whatever dish you may be preparing.

Clearly, the oven control board is essential to the aforementioned kitchen appliance working as intended. You won’t be able to use your oven if that control board is broken in any way. That’s why you also need to pay close attention to your oven to see if there is a problem that needs to be addressed.

 

What Are the Symptoms of a Malfunctioning Oven Control Board?

All oven control board problems are serious and can render your appliance useless, but they can still manifest themselves in different ways.

Among the issues you could encounter are related to temperature regulation. Even after turning the oven on, you may notice that its internal temperature is not reaching the level you need.

There are also times when the oven may indeed turn on and reach your target temperature, but when you go to turn it off, the oven may not follow your instructions. That’s obviously a serious issue and one you must address as soon as possible.

An oven with a damaged control board may not even power on at all.

Some of the indicators of a broken control board are not quite as obvious. If features such as the oven’s timer are not working, you may just think it’s a minor problem, but it could actually be telling you that something’s seriously wrong with the control board.

The broiler not working could also spell bad news for the control board installed in your oven.

Lastly, certain oven error codes may be displayed on the oven if there’s an issue with its control board. These codes typically start with the letter “F.” 

 

What Are the Tools You Need to Repair an Oven Control Board?

Now that we know more about the different oven control board problems that can pop up, it’s time to turn our attention to what we can do about them.

First off, we need to prepare the tools required for oven control board troubleshooting.

Prioritize your protection by getting some durable gloves. You can never predict what will take place during the repair process, so it’s best to have your hands protected from potential shocks or even just heat.

Some recommend laying down some cardboard on the floor. That will prevent scratches from forming on the surface of your floor. If you don’t have some cardboard handy, you can also use some old clothes to protect the floor.

The screwdriver is the main tool you’ll be using during this process, although you may also want to get an Ohm meter and possibly a putty knife. 

 

What Are the Steps Involved in Oven Control Board Troubleshooting?

Let’s now move to the step-by-step process of fixing the oven control board. 

Step 1

For wall-mounted ovens, you can start by turning off the main breaker box and then opening the door to take out the screws located underneath the electronic oven control.

For free-standing ovens, you should start by unplugging it and then use the screwdriver to pry the metal panel at the back loose. 

 

Step 2

With the control board exposed, you can now look for the ribbon that links the touchpad with the board itself. Disconnect that ribbon. 

 

Step 3

Put the oven control board back together and return it to its original position. Turn on the oven. Basically, the oven control board should be back where it should be, except there is no ribbon linking it with the touchpad. 

Leave the oven alone for about an hour. 

 

Step 4

After the rest period, go back to the oven and turn it on. Look at the display panel. 

If there is no more fault code showing up on the display panel, you can turn the oven off again. Reconnect the ribbon to the control board, but use a replacement touchpad. 

 

Step 5

Assuming the fault code is still present, you should still reconnect the ribbon, but it will take more than replacing the touchpad to fix the oven. 

 

Step 6

Turn the oven off again by either unplugging it or turning off the main breaker and then remove the multi-pin plug located at the back of the electronic oven control. Reference the wiring diagram of your oven to find pins six and eight. 

 

Step 7

Use an Ohm meter to check the readings on the aforementioned pins. Look at the readings. 

 

Step 8

If the readings you see are either lower than 900 Ohms or higher than 1200 Ohms, that means the temperature sensor should be replaced.

If the readings fall between the range of 900 to 1200 Ohms, you will have to get a new oven control board.

Touchpads can still be reused. After securing the new oven control board, you can remove the touchpad from your old board using a putty knife and then lay that on top of the replacement board. 

 

Step 9

After finishing all the steps listed above, you can turn the oven on and start using it again because the troubleshooting process is done.  

 

Hopefully, the tips listed above will help you get your oven back in working order. If you are still experiencing some issues or do not want to handle the troubleshooting process yourself, you may want to check in with our Oven Control Board specialists today!

 



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