Several fuses are commonly included in microwave ovens, all of which are intended to assure the microwave’s safe functioning.
To stop escaping of hazardous radiation from the microwave, for instance, a fuse will explode if the microwave door is not closed correctly.
Other fuses could explode due to an excessively high internal microwave temperature or an electrical surge.
If a microwave fuse continues blowing, it could not be fitted correctly, or it might be put with the wrong fuse.
Microwave fuses may also blow if specific microwave components, such as door switches or the magnetron, are broken or placed incorrectly.
A fault might also bring on the issue with the electrical wiring and power outlet.
The danger of electrocution is considerable while fixing the device since microwave ovens demands a very high voltage and current.
Even after the microwave has been unplugged from the power source for a while, the high voltage capacitor may hold a fatal amount of energy.
The capacitor must be depleted to access electrical components in the microwave safely.
The capacitor may be discharged by contacting the capacitor’s positive and negative terminals with a metal screwdriver blade.
It would be best if you took precautions to protect yourself against electrocution.
The capacitor might also be discharged with a rubber-handled screwdriver or a pair of needle-nose pliers.
If you are doubtful, you should let a qualified expert handle it.
Table of Contents
- 1 Know the Common Causes if GE Microwave Fuse Keeps Blowing
- 2 Fixes If Your GE Microwave Fuse Keeps Blowing
- 3 How to Test and Replace GE Microwave Fuse?
- 4 Related Questions
- 5 GE Microwave Fuse Replacement
- 6 Conclusion
Know the Common Causes if GE Microwave Fuse Keeps Blowing
There are various reasons if your GE microwave fuse keeps blowing.
Trace and rectify the problems one by one. A list of these problems is mentioned below.
Door Switch Problem
A door switch probably has a problem when a fuse breaks while the door is being opened or closed.
Microwave ovens often contain three or four door switches that are intended to trip a fuse and turn off power to the microwave if the door is not closed correctly.
Usually, a door switch will stop working because of wear and tear or because it is jammed. The wrong door switches being placed might potentially blow a fuse.
Using a multimeter, door switches may be checked for continuity (a continuous electrical route) to see whether they need to be changed.
Before using the microwave, be sure to heed the safety advice above.
Defective Parts in GE Microwave
If the microwave fuse bursts when you click the start button, there’s a good chance that one of the magnetrons or high voltage capacitors is broken.
It is advised to leave testing and replacing these components to a qualified expert since they are extremely risky.
However, understanding of magnetron is good for you.
It will help you to solve this fuse burning problem at your own.
The magnetron tube in this microwave oven is crucial.
It produces heat, which aids in cooking the meal.
The microwaves that generate the heat are powered by this component, which is a part of the high voltage circuit.
If the magnetron is destroyed, the device could blow a fuse, or the other features might still work well.
Let’s say the fuse in your GE microwave oven burns.
In this instance, it can be the result of a high voltage capacitor issue involving the main circuit board and magnetron tube.
Issues in External Circuitry
A power surge in your home’s electrical panel might trigger a circuit breaker or blow the microwave’s primary fuse.
The problem should be resolved by changing the fuse and examining your home’s electrical panel for a tripped circuit breaker.
Accurate selection of circuit breaker is essentially important in your electrical panel room.
If you have an issue in your electrical panel, it will hit your electrical appliances.
Thus, if GE microwave fuse keeps blowing, check your external circuitry and the electrical panel/distribution board.
Problem in the Power Outlet
A crucial question must be answered to trace the fault behind your blowing fuse.
When connected to a different power outlet, does the microwave blow fuses or stop working altogether?
A problem with the power outlet or electrical wiring causing fuses in the microwave to blow may be discovered by trying other power outlets.
The issue could be resolved by hiring an electrician to examine the electrical wiring in your house or repair a damaged outlet.
Fixes If Your GE Microwave Fuse Keeps Blowing
Aside from the safety issues, changing a fuse or door switch is not too difficult.
Additionally, microwave fuses are reasonably priced.
However, the blown a fuse can point to a defective microwave component that must be replaced.
You could decide that buying a new microwave is preferable depending on the component and your degree of microwave repair expertise.
If the new microwave comes with a new warranty, replacing the microwave could be the wisest course of action.
You can read our below fixation guide that can help you save your fuse and eliminate this GE microwave fuse issue.
Replacement of Door Switch
Blowing of fuse is due to fault in the door switch and can be replaced by following below simple steps.
1.Remove the microwave’s plug from the power supply.
2. Remove the control panel or grille with its screws.
3. Switch assembly mounting screws should be removed.
4. To activate the actuator for the switch, you are replacing, depress the release tab.
5. Remove the switch from the microwave and unplug the wire connection.
6. Using a multimeter, check the door switch for continuity.
The door switch may have two terminals or three, depending on the microwave type.
To test a three-terminal door switch, the standard and typically closed terminals must first be probed, followed by the standard and normally open terminals.
Only after the switch has been triggered should there be continuity when checking the usually open terminal.
7. Swap out a broken door switch. Make sure it is appropriately placed to prevent a fuse from tripping.
Selection of Fuse
Most microwaves have a thermal fuse or Thermo protector and the main fuse or line fuse.
The primary fuse is typically two inches long, thin, rectangle-shaped, and made of either ceramic or glass with a filament.
In most cases, the thermal fuse is a giant, black cylinder with two prongs on one side.
When changing a fuse, it’s crucial to get the correct fuse for your particular microwave type and to heed the safety advice given above.
The new fuse has to be rated for the same amount of amps as the old one.
If the incorrect fuse is installed, it could not be able to block hazardous currents, or it might blow right away when you attempt to use the microwave.
Replace Faulty Components
The issue with the primary circuit might be brought on by power failure and outages.
The internal short circuit may result from voltage changes and power interruptions.
High voltage and fluctuating current are the primary causes of sparks and short courses.
A qualified electrician and technician must examine the primary control board as the sole remedy.
A thorough examination of the whole panel using specialized instruments is necessary.
For continued usage in the microwave oven, the circuit should be changed and replaced as soon as possible if it is defective.
Replace Faulty Components in External Board
If there is an issue in your external circuitry, get it checked by an expert technician.
Replace all the faulty components that are core responsible for blowing your GE microwave fuse.
How to Test and Replace GE Microwave Fuse?
Microwave fuses may be found on amazon, depending on the brand and type of the appliance. Consult your microwave’s wiring diagram or manual to learn where the fuses are located. Before using the microwave, be sure to heed the safety instructions above.
Follow the instructions given below in order to test/replace GE microwave fuse.
- Remove the microwave oven’s power cord.
- The affective access panel should be removed. Depending on the microwave’s brand and type, you may need to remove the control panel or microwave frame.
- The fuse must be unscrewed or unclipped from the microwave.
- Check the fuse for continuity with the help of multimeter.
- If the fuse is faulty, swap it out with a new one that matches the one you removed.
- Put the microwave back together and turn on the power.
- You may test the new fuse by microwaving a cup of water for 30 seconds.
What Size Fuse Does a GE Microwave Use?
Generally speaking, Ge microwave use 20 Amp fuse to power the microwave.
If the touch pad located on the microwave becomes unresponsive, the microwave produces little to no heat, or the appliance simply does not turn on, it means that your fuse is faulty and needs to be replaced.
Do GE microwaves have a fuse?
Yes, Ge microwaves have fuse. The fuse is located under the plastic grill at the top side of the microwave. It is secured on by two screws.
GE Microwave Fuse Replacement
If your GE microwave fuse keeps blowing, it could be due to a door switch problem, External circuitry issues.
Also, check the power outlet to trace this fuse burn problem.
Defective parts in GE microwaves can also be outlined.
A step-by-step guide is elaborated in our fixation guide for removing this GE microwave fuse blowing problem.