Toshiba microwaves are generally easy to use and quite popular, but they’re not completely infallible. Sometimes, issues pop up with these microwaves, and fixing the problems isn’t as straightforward as one would hope.
When your Toshiba microwave is not working you will have to unplug your microwave and open it to find out what is the cause of the problem. In some cases, the issue will lie in the main control board having defective parts that will have to be replaced.
Just be careful not to misdiagnose the main board, as this can happen quite easily. You should make sure every other part of the Toshiba microwave is in working condition before assuming that the main board is defective.
If you are certain that the main control board is the root of the problem, you have to call a licensed technician to replace it. Don’t try to do this yourself because microwaves can store thousands of volts even after being unplugged. It is dangerous to try and repair a microwave yourself.
Alternatively, it is possible that your Toshiba microwave’s line fuse has blown. To determine if that is the case, you need to use a multimeter to test for continuity. If the fuse has no continuity, you should replace it.
Another reason for a Toshiba microwave to stop working could be the thermal fuse that has blown. This fuse cuts off power to your microwave when it overheats and it can’t be reset, only replaced. Use a multimeter to determine if the thermal fuse is the reason why your microwave isn’t working.
If those problems aren’t why your microwave isn’t working, the only remaining cause could be the Thermo protector. This is what shuts off the microwave if it overheats. A multimeter will help you determine if that’s the case. Like the thermal fuse, the Thermo protector can’t be reset, it has to be replaced.
Again, if your Toshiba microwave isn’t working, it is highly recommended that you call a skilled professional to examine the appliance. Fixing it yourself could cause more damage and you risk getting electrocuted.
Toshiba Microwave Not Heating
If you find that your Toshiba microwave isn’t doing the most basic thing it’s bought for, heating, there could be many reasons and you will have to follow a process of elimination to find the actual cause.
The most common reason for a Toshiba microwave not heating food as it should is the failure of the diode that converts A/C power output to D/C. If the diode has burned out, there will not be enough voltage for the microwave to operate properly.
Usually, when this happens, you’ll be able to easily see that the diode has burned out. Use a multimeter to test the diode and determine if it’s the reason for your microwave not heating. If that’s not the cause, it’s possible that the door switch is the problem.
Most Toshiba microwaves have three or four door switches that operate in sequence to make sure that the door closes properly. Should one of the switches fail, the microwave will not work.
Use a multimeter to test all of the door switches, and if any of them don’t have continuity, they need to be replaced.
If the microwave’s magnetron has burned out, it could be the reason why the appliance isn’t heating. The magnetron uses high current DC power to help the microwave cook food. Note that the magnetron can’t be fixed, and it should be replaced if broken.
Another reason for the microwave not heating could be that the high voltage capacitor has burned out. If that happens, the high voltage circuit will cease to work properly, which leads to the microwave not heating. Use a VOM meter with a capacitance testing capability to determine if that’s the case.
The high voltage transformer could also be the reason why your Toshiba microwave is not heating as it should. The magnetron antenna emits energy that helps to cook the food and gets its power from the transformer. You will immediately know if that is the cause of your difficulties because there will be a burning smell.
It could also be that your microwave’s thermal fuse has blown, which will result in the appliance not heating. Use a multimeter to check if that’s the case and replace the thermal fuse if necessary.
The Thermo protector, like the thermal fuse, cuts off power to the microwave in case it overheats. If the Thermo protector is the reason why your microwave is not heating, it will have to be replaced. Use a multimeter to test it for continuity to determine if that’s what’s wrong.
The final possible cause for your microwave not heating could be the main control board. If nothing else seems to be wrong with the microwave, it’s likely that you’ll have to replace the main control board. Before you do this, though, make double sure there is no other cause for the problem(s) you’re experiencing.
Toshiba Microwave Turntable Not Turning
It can be very annoying to find that your Toshiba microwave’s turntable is no longer working as it should. There are a handful of reasons for this problem, so you’ll have to take a closer look at the microwave to determine the cause.
The most common reason for a Toshiba microwave turntable not working is the turntable’s motor. Use a multimeter to test it for continuity and if that’s what’s wrong, replace it with a new one. It can’t be fixed.
If your microwave’s drive coupling is broken or stripped out, the turntable will not work properly. Pull the coupling off the drive motor shaft (be careful not to break it while removing it) and inspect it for any damage. If that’s what is causing your problems, you’ll have to replace the drive coupling.
Another reason for the turntable not moving could be a stripped-out or broken glass tray support. You’ll have to pull it off the drive motor shaft to check if it’s damaged. If that’s the case, replace it because it can’t be repaired.
The final but quite rare reason your microwave’s turntable isn’t working could be the user control and display board. This part of the microwave could be defective. Test the incoming power to your microwave’s turntable motor. If no power is coming towards it, the problem could very well be the board, which must then be replaced.
Toshiba Microwave Start Button Not Working
There are few things as frustrating as the start button on your microwave not working. There could be a few reasons this is happening, so you’ll have to check closely to find the real cause.
If your Toshiba microwave start button is not working you most likely have a defective touchpad. Press all of the buttons on your control panel to determine if it’s the reason your start button isn’t working. If all the buttons except the start button respond, you’ll have to replace the touchpad.
It could also be a combination of the touchpad and control panel not working, so you’ll have to test the control panel as well. If some buttons respond and others don’t, you will have to replace the touchpad as well as the control panel.
Another common cause for the start button not working is the user control and display board. This part could be defective, so test it by pressing each button. If some of them, or even none of them, are responding as they should, you will have to replace the control and display board.
The main control board could also be the reason for your microwave’s start button not working. Press all of the buttons on the main control board and if you find that some do not work, you will have to replace it because the main control board can, unfortunately, not be repaired.
Toshiba Microwave Power Level Button Not Working
The power level button on your Toshiba microwave could stop working for the same reasons that your start button doesn’t work. You’ll have to check various parts of the microwave to find the cause.
When a Toshiba microwave power level button is not working it is most likely because of a defective touchpad. You will have to press each of the buttons on the control panel to determine if that’s the problem. If the buttons don’t work, you’ll have to replace the touchpad.
The user control and display board could also be the cause of the problem if it’s defective. Test it by pressing each button to see how they respond. If there are buttons that don’t work, you will have to replace the control and display board.
The touchpad and control panel is another part of the microwave to check if your power level button doesn’t work. Press each button to see if they work and if there are buttons that don’t respond, replace the touchpad and control panel.
Copyright protected content owner: ReadyToDIY.com and was initially posted on September 22, 2022.
In rare cases, the main control board could be why your Toshiba microwave’s buttons aren’t working. Press each button on the main control board to determine if that’s the case. If it is defective, you’ll have to replace the board.
Toshiba Microwave Not Turning On
To determine why your microwave isn’t turning on, you will have to open and inspect it. Do this very carefully as microwaves can store voltage even after being unplugged.
If your Toshiba microwave is not turning on you will have to run several tests to see why your microwave is not turning on. You should check for obvious damage to any of the components first, then move on to the main control board.
If the thermal fuse has blown, it’s possibly the reason why your microwave isn’t turning on. This fuse cuts off power to the appliance if it overheats. Use a multimeter to test it, and should the thermal fuse be the reason, it will have to be replaced.
The Thermo protector could also result in the microwave not turning on. This also shuts off the microwave in case of overheating. Use a multimeter to test the Thermo protector and if it’s the cause, it needs to be replaced.
Copyright article owner is ReadyToDiy.com for this article. This post was first published on September 22, 2022.
Your Toshiba microwave’s door switches could also be the cause of your problem. It has several switches working in sequence to ensure that the door is closed properly. If one of the switches stopped working, the microwave won’t turn on. You can use a multimeter to test the switches and replace them if necessary.
The main control board could also be the reason why your microwave is not working. Press all of the buttons on the main control board and if some do not work, you will have to replace it to fix the issue.
Toshiba Microwave Won’t Turn Off
A microwave not turning off can become a real problem and is quite worrisome. There could be several reasons for this, so you’ll have to do a few tests to find out what’s going on.
If your Toshiba microwave won’t turn off there could be a malfunction on your door switch. A defective door switch can cause the microwave to continue running even after the door is opened. You will have to test the switches with a multimeter and find out if they are defective and then replace them.
The touchpad or user control and display board could also malfunction and cause the microwave to not turn off. You’ll have to press buttons on the touchpad and user control and display board to determine if that’s the case and replace them as necessary.
Toshiba Microwave Not Responding to Alexa
Toshiba microwaves are made to be quite clever and communicate with Alexa. However, it could happen that the microwave does not respond to instructions given through Alexa. There is only one way to deal with this issue.
If your Toshiba microwave is not communicating with Alexa a manual reset is required. Use the Alexa app, go to the Skills & Games settings. Tap on Your Skills, choose the MSmartLife Skill (or whatever skill allows Alexa to communicate with the microwave). Disable the skill and then enable it again.
That should solve the issue, but if it doesn’t, you will have to contact your microwave manufacturer or Amazon to help you find out what is wrong.
How to Reset Toshiba Microwave
Sometimes, the only thing that your microwave really needs is a reset to get it back in proper working order. This is something you can easily do without opening the appliance and risking damage or electrocution.
To reset a Toshiba microwave is a straightforward process. Simply turn the microwave off. Leave the microwave off for a minute or two and turn again. That is all it takes for a soft reset.
ReadyToDIY is the owner of this article. This post was published on September 22, 2022.
If a soft reset does not fix your problem, you can do a hard reset. This can be done by unplugging the microwave from the wall socket. Let the microwave remain off for three minutes and plug it in again. Next, turn the microwave on again.