If your microwave oven won’t turn on and the display is blank, the problem may be the ceramic fuse. … The ceramic fuse is located inside of the cabinet near the entry point of the power cord. Remember to unplug the cord before attempting any repairs. You can check the fuse for continuity with a multi-meter.
How do you fix a microwave that won’t turn on?
Start by checking the wall plug to ensure the microwave is plugged into power. Next, check the door switch and the door latch assembly. The microwave won’t start if the appliance believes the door is open. Next, check the two fuses, the thermal fuse, and the ceramic fuse, to see if they need to be replaced.
How do I know if my microwave fuse is blown?
It’s easy to tell if a glass fuse is blown; it will show scorch marks, and the filament will be melted. To check a ceramic fuse, use an ohmmeter or continuity tester. With an ohmmeter or multimeter, you should see a reading close to zero ohms if the fuse is intact, or infinite if it’s blown.
Is there a reset button on microwaves?
Most microwave ovens do not include a reset button. … The most common way of reseting your microwave is called a hard reset. A hard reset happens when you physically unplug the microwaves’ cord from the wall outlet.
Can I use my microwave if it doesn’t turn?
It is possible to cook or heat food in a microwave that doesn’t spin or doesn’t have a turntable. But a rotating turntable helps spread the heat more evenly so that the food is heated sufficiently, which can ensure to kill all microorganisms while preserving all the valuable nutrients.
Are microwaves worth repairing?
Some experts say it’s not worth repairing a malfunctioning countertop microwave because the average cost of repairs runs about $70–$100 not including parts—about half the cost of a good-quality new one.
Are there fuses in microwaves?
Fuses are located in many places inside the microwave, including the top, side, and behind the vent grille. Using the wiring diagram can help you locate the appropriate fuse. Once you have located the fuse, remove any necessary wires and fasteners to free it from the microwave.
What happens if microwave fuse is blown?
If the fuse blows when you open the door, the door interlock might be malfunctioning. This is a design feature. If the door isn’t properly closed, microwaves could leak out. The oven will disable itself rather than let this happen.
How much is a fuse for a microwave?
Fuse replacements for a microwave cost between $50 and $100 on average. This is one of the cheapest and simplest microwave repair jobs. Many appliances have fuses, and over time, it is natural for fuses to wear out or blow. Replacing a blown fuse with a new one should take less than half an hour for most microwaves.
What’s wrong with microwave when it stops heating?
If your microwave oven doesn’t heat, you may have a problem with the magnetron. This component is part of the high voltage circuit and provides the microwaves that generate the heat. If the magnetron is defective, the unit may blow a fuse, or you may still have all other functions operating normally.
Why did my microwave suddenly stop working?
The most common cause for a microwave oven not working at all is a blown main fuse. … When this happens, the fuse is considered “blown” and the fuse will need to be replaced with a new one before the microwave will start working again. The main fuse is not the only fuse found in microwave ovens.
How do you do a hard reset on a microwave?
Press and hold the START/ENTER key again for approximately 4 seconds. The L indicator or lock icon should disappear from the display. If the controls are still not responding, attempt a reset on the microwave by unplugging the unit for 2-3 minutes. Plug the microwave back in and attempt the use the microwave again.
How long should a microwave last?
The average microwave oven lasts about seven years with normal use, and even less with heavy use and poor maintenance. A large family may find themselves replacing their appliance every four to five years as they become more reliant on its use to heat up snacks and leftovers, or to defrost meals.
Do microwaves need turntables?
Solo microwaves and many combination microwaves have a turntable inside, which automatically rotates food to ensure even cooking. These can be removed for easy cleaning. … Flatbed microwaves use a different technology that evenly distributes heat without the need for a turntable, giving you extra cooking space.
How do you test a microwave turntable motor?
First, check whether the turntable motor is receiving the proper voltage from the control board. To do this, connect a volt meter across the two terminals of the motor and switch on the microwave(WARNING: WIRES WILL BE LIVE AND DANGEROUS. DO NOT ATTEMPT WITHOUT PROPER TRAINING).