Black and Decker toaster ovens have different knobs to set temperature, function, and timer. It prevents the user from setting any command when the knob is unresponsive on the appliance.
However, this is a rare issue that some of black and Decker customers have reported. Fortunately, you can fix an unworking dial if done correctly.
If the knob on your Black & Decker Air Fryer Toaster Oven isn’t working, you need to replace it. Get a new correct switch according to the model number. Unscrew the rear screws holding the side cover. Use a long magnetic Phillips screwdriver to unscrew and replace the knob.
Let’s understand why the dial or knob is not working on your unit and what you should know to fix it.
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Black and Decker Air Fryer Toaster Oven Knob Not Working?
There are different models of air fryers by Black and Decker, so each has a different number of knobs. Typically, most models only have two to three knobs.
These knobs make the user work easier to set time, temperatures, and mode. With the use of a temp knob, users can set a temperature range between 80 degrees to 450 degrees along with cooking mode.
In case any knob stops working, the user cannot set the temperature, function, or time on the device.
The dial probably stops working due to internal hardware faults, such as problems with PCB and the unworking rotary switch behind the knob.
Users can make the knob again responsive only after addressing the actual cause. You can only know the reason behind this issue by testing the printed control board and switch behind the knob.
There is a need for a one and a half feet long magnetic Phillips screwdriver as it can make it easier to reach the switch behind the knob.
The knob that isn’t working should be turned so you can see how well the switch is connected.
If it is rotating very smoothly and not stopping at any end which is abnormal, then it is a clear indication that the switch behind the Black & Decker Air Fryer Toaster Oven knob fails to work.
Reasons Black and Decker Air Fryer Toaster Oven Dial Not Working?
Whether you want to select the toast, grill, or bake function, the knob is responsible for selecting responsible air fry, toast, grill, and bake functions. In fact, if you’ve a new unit, there is no guarantee that knob issues cannot be caused. It can cause even units to be new or old.
You should follow the right fix to restart the knob functionally. Several possible causes create problems with knob functionality.
Don’t just take guesses of course just from looking at the unresponsive part from outside. It requires disassembling covers to address and fix the faulty component.
Following are some possible causes of not working Black and Decker air fryer toaster oven knob:
The broken switch behind the knob:
Every knob has a switch behind it that is hidden from the outside. If it is broken, the knob will fail to provide input to the circuit board and make the knob unresponsive. As this cannot be seen from the outside, it can make a sum of us why the settings are not getting changed every we rotate the knob at any number.
Let’s understand how the switch behind the knob works. You can see knobs on the right of the device. You might think that these are the actual part that provides input to the device, but that is not true.
Because when you turn the knob or set a mode, the knob turns the switch behind it which is not visible from the outside.
A small switch behind the details provides user commands from the knob to the control board. If this switch is broken or does not work, the knob will not work.
The knob switch has a broken connection with PCB:
The switch behind the knob has a connection to the printed control board of the Black & Decker Air Fryer Toaster Oven.
When the user turns the knob this switch transmits the setting measurement to the control board through this connection.
In case the mechanical connection between the PCB and switch is broken or has some problem with the delivery command, the User will see no functionality with the knob.
Problem with Control Board:
If all the above-described possible faults are not in your device, but still the knob is not working.
there might be a problem with the control board. If the knob is providing proper input to the control board but the control board is not following the command, you will not see any functionality in the Black and Decker Air Fryer Toaster Oven.
The printed circuit board inside the appliance is responsible for providing output based on knob inputs.
If the printed circuit board itself is unworking, it will not follow the command made by the knob and will make you think the knob is not working.
How to Fix Unworking Knobs On a Black and Decker Air Fryer Toaster Oven?
In this section, We’ve described some easy-to-follow steps to fix an unworking knob of a Black and Decker air fryer toaster oven.
You can follow the steps even if the model of the air fryer toaster oven is old or latest.
This fix works for all types of not working knobs. You will need some tools and new components to proceed further which we’ve listed below.
Tools required: A long Magnetic Phillips Screwdriver.
Time: 20 – 30 minutes
Here’s how to fix not working knob of the Black and Decker air fryer toaster oven:
- Get a new knob switch that matches the oven’s model number. You can see the model number on the back. After there is a new switch, proceed.
- Unplug the power cord from the wall outlet and place the appliance in a large counter space where you can easily make repairs.
- Take a long magnetic screwdriver and start unscrewing the back screws. When the rear screws are loosened, this will allow you to open the top cover of the device.
- Open the top cover by unscrewing its screws. Once it’s open, you can see the switch behind the knob.
- Access the switch attached to the control board. If the switch is wired to the control board, disconnect the wires from the switch.
- Pull out the faulty switch behind the knob from the appliance. Replace it with a new switch.
- Fit the switch as the old switch was in position. Connect all the wires you have uncovered.
- Put all the covers back together. Make sure the screws are tightened properly.
- Plug in the device and test the knob. Now the knot is working again!
Note: In case the black and decker knob switch replacement won’t work, replace the printed circuit board. Just follow the same steps you followed for knob switch replacement. The only thing you’ve to consider is that you will replace the circuit board instead of the knob.
Final Thought
Make sure the switch you are buying for replacement is genuine and lasts a long time. Some knob switches are poorly designed which can break them with some force.
Replacing the knob switch or faulty circuit board is the only way to fix a malfunctioning Black and Decker air fryer toaster oven knob.