Oster Microwave Troubleshooting! 32 Oster Microwave Problems Solutions!

Oster is one of the best microwave oven manufacturer brands in the present market. Oster microwave ovens are very effective, easy to use, easy to control, super durable, and reasonable in price.

However, an Oster microwave oven is an electric device, and being an electric appliance, an Oster microwave oven can malfunction sometimes. It is usual and true for all other brands of microwave ovens available in the present market.

If you are an Oster microwave oven user and your oven starts malfunctioning while using it, this article is for you. Here we have discussed almost 32 Oster microwave oven issues and given their solutions for you so that you can fix your favorite Oster microwave oven at home instead of taking it to a repair shop to fix it.

Oster Microwave Not Working!

When it comes to using your Oster microwave oven, there are so many considerations that you need to take into account to avoid common issues such as your oven not working.

This article will take a more profound insight into some of the problems causing your oven not to work and the best way to mitigate them.

Why Is Your Oster Microwave Not Working & What To Do?

• Blown main fuse: The fuse safeguards your oven from overheating whenever the voltage transferred to your Oster microwave oven is too high. However, the voltage is too much at times, blowing up the fuse. When this happens, it affects the performance of the fuse, which in turn hinders your Oster microwave oven from working. To fix it, try as much as you can to restore the fuse quickly.
• Malfunctioning control board: If you learn that your oven is not working because the control board is malfunctioning, consider replacing it as quickly as possible.
• Faulty magnetron:  Apart from all the other Oster microwave parts, the magnetron ensures that your range operates smoothly. So if it’s defective, your appliance will most likely not work unless you restore it.
• Defective switch: A faulty switch limits the power supply being wired to your range, making it unworkable for your oven, which is why you must replace it as quickly as possible.
• The start button is not switched on: The start button initiates the oven programs. Failure to turn it on makes it impossible for your oven to run smoothly.
• Insufficient power supply: If your Ostermicrowaveoven is not working, it could be due to a problem with the wiring connection of the range to the power supply. The wiring cables to the power supply tend to malfunction, sometimes causing an interruption in the usual power supply. Therefore you must replace the wiring cables with much better ones to enable your oven to operate as expected.

Most of the time, when your Oster microwave oven is working smoothly, it gives you the satisfaction that you made the right choice by purchasing the oven.

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Oster Microwave Not Heating!

As your Oster microwave is heating your food, it softens it, giving you an easy time chewing in the mouth and digesting it. However, this is unattainable if your Oster microwave is not heating.

The following are some of the reasons why your Oster microwave could be behaving this way:

Why Is Your Oster Microwave Not Heating & What To Do?

• Malfunctioning door switch: If you tend to slam your oven door anytime you want to close it, it will most likely malfunction, inhibiting your oven from heating as usual. At all times you are handling the oven door, be very gentle.
• Burned-out diode: The diode controls the flow of electrical current in one direction. At times the high is too much, causing the diode to blow up, resulting in your microwave not heating. The best way to handle this situation is to replace the microwave diode quickly.
• You might be heating foods that are not supposed to be cooked in your oven: When you read the Oster microwave user manual, you will likely find it highlighted in bold that some foods, such as frozen meat, seafood, etc., are not supposed to be placed in your oven. Doing the opposite of this obstructs your range from heating your food.
• Deficient power supply: The heat your Oster microwave oven emits to heat your food results from sufficient power transmission. So if the power supply is short, your oven can’t heat your food unless you fix it.
• Defective magnetron: The magnetron generates heat to enable your Oster microwave to heat your food smoothly. However, the magnetron tends to be defective sometimes, hampering it from operating as usual. The best approach to take when your oven is experiencing such a problem is to purchase a new magnetron.

Eating cold foods is unhealthy, so you must immediately fix your Oster microwave oven if you learn it is not heating.

Oster Microwave Not Spinning!

Whenever your Oster microwave oven is spinning your food, it increases your chances of consuming a portion of highly nutritious food. But you must also recognize that your oven might fail to spin sometimes.

The following are some of the reasons that will make you easily understand what might cause your Oster microwave not to spin:

Why Is Your Oster Microwave Not Spinning & What To Do?

• Faulty turntable motor: The motor is located underneath the turntable. It ensures the oven’s plate spins while the oven is operating. Due to regular use of your Oster microwave, the motor may start experiencing faults, making it hard for your oven to spin. Therefore you must replace it as fast as you can.
• The turntable is not properly placed: If the turntable is not properly placed, it affects how your oven usually spins your food. Therefore when preparing the oven for use, take your time.
• Damaged glass tray support: When you fail to handle it properly, it may end up causing some of your Oster microwave parts, i.e., glass tray support, to get damaged. As a result, your oven won’t spin as usual unless you replace it.
• Food debris: It is normal for some food particles to spill on your oven while heating. Because of this, you must ensure that you properly clean your range when you use it. Failing to do so inhibits your oven from spinning as usual because the food debris obstructs your oven from spinning.
• Malfunctioning tray coupler: The moment you learn it is defective, consider replacing it as fast as possible because it hinders your oven from spinning.

It is okay to fail to spot the cause of the problem on your Oster microwave. Because of this, you need to consider an expert’s opinion.

Oster Microwave Not Turning On!

You cannot operate your Oster microwave oven if it is not turning on. An Oster oven sometimes cannot be turned on for a few specific reasons.

If your Oster microwave oven is not turning on, consider checking the following:

Why Is Your Oster Microwave Not Turning On & What To Do?

• Inspect the door switch: To achieve this, use an ohmmeter to test the door switch for continuity. If you realize that there is no continuity, that indicates that the door switch is malfunctioning, preventing the oven from turning on. Therefore you must replace the door switch with a much better one.
• Check the power cord: Your oven might not turn on due to a fault in the power cord. To tackle this problem, try using another power cord.
• Examine if the fuse is in perfect condition: If you discern that the fuse is faulty, attempt to replace it as fast as possible since repairing it is very costly.
• Try to reset your oven: Resetting your Oster microwave oven is the perfect way to get rid of glitches that might hinder your range from turning on.
• Ascertain that the start switch is turned on: You might not have remembered to turn on your oven’s start button hence why your Oster microwave oven is not turning on.
• Plug the oven: You have probably forgotten to plug the oven into the power source. If so, plug your oven into the power source and then try to turn your oven to turn on.

Try using another Oster microwave oven if you fail to fix the one with which you are currently experiencing faults.

How To Turn On Oster Microwave?

When you read the Oster microwave instructions manual, the following are the steps you need to take to turn on your Oster microwave oven.

• Depress the cook time switch once.
• Using the number pads on the oven, set the cooking time of your choice.
• Depress the power button once.
• Using the number pads, set the power level of your preference.
• Finally, press the start button.

Voila, your Oster microwave oven is turned on.

Oster Microwave Not Starting!

After purchasing your Oster microwave oven, you need to set it up correctly per the Oster microwave instructions manuals guidelines.

Setting up your oven ensures it operates smoothly. Even after following all the steps highlighted in the Oster microwave oven instruction manual, you will notice that your oven is still not starting.

In this kind of scenario, consider doing the following:

Why Is Your Oster Microwave Not Starting & What To Do?

• Check if your oven is properly plugged in: It is not enough to connect your oven to the power source but ensure that it is appropriately connected because if it’s not, it limits your oven from getting enough energy it needs to operate.
• Ensure that all the Oster microwave parts are well assembled: In the Oster microwave user guide, the steps you need to follow when assembling your oven are very well highlighted. All you need to do is to follow the instructions to enable your range to operate fully keenly.
• Ascertain that the oven door is closed: One of the most important things you must remember is that the oven can only start if the door is closed correctly. Therefore if you learn that your oven is not starting, look at the oven door to see if it is properly closed.
• Inspect if the internal Oster microwave parts are in perfect condition: Your oven might not be starting due to a problem within the internal microwave parts, such as the fuse, magnetron, etc. If you notice any fault with any microwave part, consider replacing it as fast as possible.
• Check if the power is working perfectly: The power cord facilitates the transfer of electrical current from the power source to your oven. Due to prolonged use, it tends to wear out at times, affecting the usual transfer of electrical flow to your range and preventing your oven from starting. In this case, it is better to use another power cord for effective results.
• Look at the power source: Sometimes, it is typical for it to malfunction. Whenever this happens, it alters the usual power flow to your range, making it impossible for it to start. Therefore you must fix the power source to use your oven quickly.

Consider taking your Oster microwave oven to the nearest microwave repair shop to fix it by a qualified technician if you still have problems.

Oster Microwave Buttons Not Working!

Like other brands of microwave ovens, an Oster microwave oven button may not work sometimes. It is usual and true for all brands of microwave ovens available in the present markets.

The buttons on your Oster microwave oven enable you to interact with the range easily. So if they are not working, using the oven can be very complicated.

However, you can take your time and do the following:

Why Your Oster Microwave Buttons Not Working & What To Do?

• Ascertain that the control board is running smoothly: The control board is in charge of the oven’s functions. If it starts to experience some faults, it affects the performance of the buttons. To fix this, you must restore the control board as fast as possible.
• Inspect the control panel to see if it is in perfect condition: The control panel and the oven buttons work hand in hand. When you realize that the control panel is malfunctioning, you must consider replacing it as fast as possible because it also affects the performance of your oven’s buttons.
• Check the performance of the membrane switch: If the membrane switch is faulty, it won’t be able to transmit any signal to the control board whenever you press it hence why your oven buttons might not be working. Because of this, it is better to use another membrane switch.

Suppose you manage to identify the cause of the problem with your oven. In that case, you can do the necessary replacements on your own, even though it is not advisable for a non-professional to try to fix the oven on their own because you could end up causing further damage to your microwave.

Oster Microwave Start Button Not Working!

The start button enables you to turn your Oster microwave oven on/off. However, this is not possible if it’s not turned on.

The following reasons explain why:

Why Is Your Oster Microwave Start Button Not Working & What To Do?

• Faulty door latch assembly: Your Oster microwave start button might not be working because of a fault in the door latch assembly. Because of this, you must restore the door latch assembly quickly.
• The oven door is not correctly closed: Failing to close your door properly makes it impossible for the start button to operate effectively. You must always be keen and gentle while handling your range to prevent this.

If you still need help fixing your Oster microwave oven, try checking for expert advice online on how to go about this problem with your oven easily.

Oster Microwave Turntable Not Working!

You can’t get the expected results when you heat your food with your Oster microwave oven if the turntable is not working.

In this case, you must try as hard as possible to identify the cause of the problem and fix it quickly.

If your Oster microwave turntable is not working, the following reasons explain why:

Why Is Your Oster Microwave Turntable Not Working & What To Do?

• Food debris: This results from some food particles spilling on your oven while it is heating. The food particles then clog the turntable obstructing it from working, which is why you must properly clean your range whenever you are done using it.
• Defective turntable motor: The turntable motor powers it to enable it to spin your food easily. However, due to its great use, it tends to wear out at times, making it defective. To fix this, you must restore it as fast as you can.
• Malfunctioning tray coupler: A malfunctioning tray coupler obstructs your oven turntable from working smoothly, which is why you must try as hard as you can to restore it with a much better one quickly.
• Damaged glass tray support: It’s impossible for your oven turntable to operate smoothly if the glass tray support is damaged. Because of this, you need to restore it as quickly as possible.
• Faulty roller guide: If the roller guide is faulty, your oven turntable won’t work as usual unless you replace it.

If you cannot fix your oven’s problem, check if it is still under warranty. If your Oster microwave warranty still has, you need to take it back to where you purchased it to replace it with a new one.

Oster Microwave Stopped Working!

Oster microwave oven is an electric kitchen appliance, which is why it can be stopped working at any time for a few specific causes. It is also true for all other brands of microwave ovens available in the market.

The following are some of the basics things you can attempt on your Oster oven if it suddenly stops working:

Why Is Your Oster Microwave Stopped Working & What To Do?

• Check the power supply: The power cord might have detached from the wall socket without your knowledge, causing an interruption in the usual flow of electrical current, which in turn explains why your oven might have stopped working. At all times, before you start using your range, do a final check to ascertain that everything is well connected.
• Inspect the fuse: To have an easier time inspecting the fuse, you need first to take part the Oster microwave parts carefully and then locate the fuse holder as it is the housing of the fuse. If you realize that the fuse is faulty, the best action to take is to purchase a new one, as fixing it is very costly.
• Scrutinize the switch: Your Oster microwave might have stopped working due to a problem with the switch. Because of this, try using another switch to enable your oven to operate smoothly.
• Check the magnetron: The magnetron is one of the basic components that keep your oven running smoothly. So if you realize that it’s defective, contemplate replacing it as quickly as possible because it hinders your Oster microwave oven from working smoothly.
• Inspect the main control board: When you learn that the control board is malfunctioning after inspecting it, the best approach is to replace it. Failure to do so makes it impossible for your oven to operate as usual.

If luck still does not land on your side, try contacting the Oster microwave oven customer service for assistance or take your Oster microwave to a kitchen appliance repair shop to fix it by a licensed technician.

Oster Microwave Not Heating Food But Runs!

You may notice that your Oster microwave is not heating your food, yet it is running. In this situation, the following are some of the causes and solutions:

• Blown diode: Most of the time, the diodes blow up, it is mostly because of transmitting too much energy to the magnetron. The diode might still have some energy to keep your oven running, but it won’t be able to heat your food unless you fix it.
• Faulty magnetron: If your oven is running yet not heating, it is most probably because the magnetron is faulty. A faulty magnetron cannot produce the adequate energy your oven needs to heat your food even though it is still running. Because of this, it is best, therefore, to use another magnetron.
• Malfunctioning door switch: You might not have realized, yet, the impact the door switch has when it comes to properly functioning your oven until it stops heating your food yet is still running. In this situation, you can replace your oven door switch with a much better one.

If you still need assistance with your Oster microwave oven, please contact Oster microwave customer service to have it replaced.

Oster Microwave Timer Not Working!

The oven timer lets you set the time your food will take to finish cooking. However, this is impossible if it’s not working.

The following are some of the causes and solutions as to why this might be happening:

Why Is Your Oster Microwave Timer Not Working & What To Do?

• The power cord might be malfunctioning: If the power cord is malfunctioning, it hinders your oven from getting the sufficient energy it needs to enable the oven timer to operate smoothly. Therefore you must replace it as fast as possible.
• Faulty oven timer: If your oven timer is not working, it is because it might be faulty. In this situation, you cannot replace the oven timer.
• Defective control board: The control board is responsible for the operation of your oven. So if it is faulty, the probability of your oven timer working is very limited. Therefore you need to replace the control board with a new one.
• Malfunctioning circuit breaker: If you learn that the circuit breaker is malfunctioning, it is best to try to use another one to enable your oven timer to resume its usual operations.
• Damaged power cord: If the power cord is damaged, it limits your oven timer from working as usual. In this case, it is best to purchase a new power cord.

If the oven timer is still not working, consider contacting Oster customer service for solutions on how to go about this.

How To Set Timer On Oster Microwave?

To set the timer on your Oster microwave oven;

• Press the timer button.
• Using the number pads on the control panel, insert the time of your preference, whether in a twenty-four-hour system or a twelve-hour system.
• Finally, press the start/stop button.

Just like that, the timer on your oven is set.

Oster Microwave Making Noise!

According to research, noise can lead to health issues such as heart disease, heart pain, and high blood pressure.

So if your Oster microwave oven is making noise, you need to identify the problem and solve it as fast as possible.

The following are some of the causes and solutions:

Why Is Your Oster Microwave Making Noise & What To Do?

• Worn-out diode: Your oven might make noise due to a worn-out diode. The worn-out diodes tend to rub against each other while operating, which in turn emits some noise. To fix this, you must restore the diodes with much better ones.
• Defective magnetron: If the magnetron is defective, it will most likely emit noises to indicate that it is about to expire. Therefore, in this case, it is best to purchase a new magnetron.
• Faulty motor: A faulty motor will start emitting noises while operating. Because of this, you must replace the motor with a much better one.
• The oven fan might be malfunctioning: The fan in your oven is responsible for distributing heat to enable your food to heat fully. Some food particles tend to settle on the fan while operating, causing it to malfunction. As a result, it starts emitting loud noise while it is operating. To prevent you always need to clean your oven whenever you are done using it.

If your oven is still making noise, consider purchasing a new range since the noise might result from prolonged use.

Oster Microwave Won’t Turn On!

The following are some of the things you can do if your Oster oven won’t turn on.

Why Your Oster Microwave Won’t Turn On & What To Do?

• Check the power supply: your Oster might be turning on because it might be getting a limited power supply. This problem usually occurs when the oven detaches from the socket, which explains why you need to check your oven before using it.
• Ensure the oven door is properly closed: Your Oster oven can’t turn on if the door is not properly closed. Therefore when you open the oven door to clean the oven or place your food in the oven, ensure that you close it properly.
• Check the internal Oster microwave parts: Your Oster microwave might not turn on due to a problem with the internal Oster microwave parts, i.e., the fuse and magnetron. To fix this problem, try to replace the damaged parts as quickly as possible.
• Check if the start button is turned on: If your Oster oven won’t on, it is probably because the start button is not pressed. Therefore you need to press it to enable your oven to turn on.

If your Oster microwave still won’t turn on, then take it to an electric kitchen appliance repair shop to fix it or contact the Oster customer service team for help.

Oster Microwave Power Level Not Working!

If the power level of your Oster microwave oven is not working, consider performing a hard reset on your range to get rid of the error codes that might be disrupting the usual performance of your oven.

How To Change Power Level On Oster Microwave?

When you read your Oster microwave user manual, you will find the following steps highlighted about changing the power level on your Oster microwave oven.

• Identify the power level button on your oven.
• Depress the power level button once.
• Using the number pads on your range set the power level of your preference.
• Finally, depress the start switch.

That is how you change the power level on your Oster microwave oven.

How To Change Power On Oster Microwave?

Sometimes you may be forced to change the power on your Oster microwave oven to speed up the heating process. The following is how it is done.

• Depress the time cook switch.
• Insert the cooking time.
• Press the power level button.
• Enter the power level of your choice
• Finally, press the start button.

Changing the power on your Oster microwave oven is as simple as that.

Oster Microwave Reset Button!

The reset button on your Oster microwave oven, located on the control panel, gives you an easy time while resetting your Oster microwave oven.

How To Reset Oster Microwave?

Resetting your Oster microwave oven enables you to protect it from damage caused by the flow of excess electrical current.

To reset your Oster microwave, the following are what you need to do;

• Identify the reset button on the control panel
• Press and hold it for about three seconds.

Just like that, the reset process is complete.

Furthermore, performing a reset enhances the performance of your range.

Oster Microwave Fuse Location!

Due to unavoidable circumstances, you might be forced to change the fuse in your Oster microwave oven. To achieve this, you need first to locate the fuse.

To locate the fuse:

• Detach your microwave from the power source: This cuts the flow of electrical current to your oven, which might cause harm to you.
• Unfasten the outer cabinet: This is to get a glimpse of the inner Oster microwave parts.
• Stick to the direction of the power cord into the unit: This enables you to access the fuse holder, which houses the fuse easily.

After successfully locating the fuse, ensure that all the Oster microwave parts are perfectly inserted in their respective locations.

How To Change Oster Microwave Fuse?

To change the fuse in your Oster microwave oven:

• Unplug your oven from the power source.
• Gently disassemble the Oster microwave parts.
• Locate the fuse holder.
• After that, change the fuse with the fuse of your choice.
• Finally, put back the microwave parts in their respective positions.

Changing your oven fuse is very simple.

Oster Microwave Clock Won’t Set!

If the clock on your Oster oven is not set, it is hard for you to manage your cooking time. The following are some of the reasons why this might be happening:

Why Your Oster Microwave Clock Won’t Set & What To Do?

• Power outage: you might be experiencing a power blackout, and you have not realized it yet hence why your range is not getting sufficient power; it needs to set the clock.
• Faulty controller: The controller controls the oven’s functions, including the oven. It is difficult to set the clock on your range if it is faulty. To fix this, you must restore the controller as quickly as possible.
• Malfunctioning control panel: If the control panel is malfunctioning, it is difficult to set the clock on your range. To tackle this problem, consider replacing the control panel, as fixing it is very costly.
• Damaged power cord: The clock on your Oster microwave oven might not be set due to a problem with the power cord, which hinders your range from getting sufficient power it needs to operate fully. To fix this, try using another power cord.

If the clock on your Oster microwave oven won’t set, consider seeking assistance from a professional.

How To Set Clock On Oster Microwave?

To set the clock On Oster Microwave Oven:

• Press the clock switch.
• Depress the number pads to enter the correct time.
• Press the clock switch once more.

That is how you set the clock on your Oster microwave oven.

How To Unlock Oster Microwave?

To unlock your Oster microwave:

• Disconnect it from the power source for about five minutes.
• After that, plug it in again.
• Finally, press the clear/off switch.

If you cannot still unlock your oven, it is best to contact a qualified professional.

How To Silence Oster Microwave?

To silence your Oster microwave oven, all you need to do is

• Identify the power/off switch on your range.
• Then depress and hold it.
• After that, depress the hold of the “0” switch.

To set your Oster microwave oven on silent mode, you must liberate both buttons when you discern a beep sound.

How To Turn Off Sound On Oster Microwave?

To turn off the sound on your Oster microwave:

• Locate the power/off button and press it.
• After that, press and hold it.
• Subsequently, depress and clutch the “0” switch.
• To turn off the sound, release both buttons when you hear a beep sound.

If you still need assistance, consider seeking help from a microwave expert.

How To Turn Off Oster Microwave Beep?

To turn off the beep on your Oster microwave:

• After removing any food constituents, close the oven door.
• Identify the power/off button.
• After that, press and hold it.
• Respectively, press and hold the “0” switch.
• When you hear a beep sound, release both switches.

That is how you turn off the beep of your Oster microwave oven.

How To Open Oster Microwave?

Opening your Oster microwave is very simple. All you need to do is press the oven’s release switch and jerk the door open instantly.

Is Oster Microwave Dishwasher Safe?

Yes, the Oster microwave is safe. Furthermore, it also traps dirt and food residue that may clog your oven, preventing it from operating fully.

How To Clean Oster Microwave?

Cleaning an Oster microwave oven is very easy. You just have to learn once how to clean it then you will no longer be required to learn how to clean it.

In the Oster microwave user manual, the following are how you are supposed to clean your Oster microwave oven:

• Unplug your oven from the power source.
• Use warm soapy water.
• Wash the tray in warm soapy water.
• Use a lenient detergent to wipe the bottom surface.
• Use a damp cloth to clean the outer part of the oven.

Always ensure that you clean your oven regularly to enhance its performance.

How To Use Oster Microwave?

Using an Oster microwave oven is very easy. If you can use your Oster microwave oven once successful, you no longer need to learn how to use it.

To use your Oster microwave oven:

• Depress the clock switch once and enter the time of your preference.
• Depress the timer switch to set the time.
• Depress the “defrost by weight” button to defrost your dish with its weight.
• Choose the “speed to defrost” to defrost your food faster.
• You also opt to set the child lock to prevent the young children from playing with the oven while it’s operating.

If you are having problems using your oven, consider contacting Oster customer service for assistance.

Bottom Line:

It is usual for your Oster microwave to malfunction even after using it for a long time, which is why you need to seek an Oster microwave oven expert’s opinion to know how to tackle the problem in case it reoccurs shortly.