How To Repair A Microwave Oven With A Faulty Start Button

By Author: Smita Jain
Total Articles: 40
Comment this article

Before you make any attempt to repair it, it is wise to try to understand what might have caused it to stop working, either through electrical malfunction, physical damage, or an error in the software.

Checking the Power Supply and Control Panel

Before any repairs commence, ensure to eliminate some basic issues that might hinder the power supply. Having ruled out power problems, check the control panel for any exciting visible damage. With frequent use, the membrane keypad may have degraded over time, leading to an internal circuit becoming bad.

Sometimes, dirt, grease, or moisture can collect around the control panel, and this may inhibit the functioning of these buttons. The surface may be cleaned with a mild cleaner and a soft cloth to solve minor setbacks. In case any of this doesn't work, we shall then inspect the internal circuitry further.

Inspecting and Replacing the Membrane Keypad

Depending on the condition, a damaged membrane keypad usually prevents the start button on a microwave not to function. This flexible layer transfers the user's input to the control board. If the layer ...
... suffers any form of damage, wear, or detachment, the buttons stop responding. Repairing it, as a result, generally ends with a straightening one.

To replace the keypad, caution needs to be taken to unplug the microwave and remove the shell. New membrane keypads are very common online as well as in appliance repair shops.

The Power Board Diagnosis

If the microwave and the keypad seem to be operating, nothing is faulty; it could probably be that the control panel has malfunctioned. The control board constitutes the heart of the microwave: it receives and understands commands from the user performs their function and subsequently manages the associated parts.

Though this board needs special care when in use electronic components are pretty delicate-be sure to look for burnt circuits, loose connections, or damaged relays. If it's clear to see that the control panel has sustained some injury to it: badly damaged-and you can still see it, replace it. A microwave oven repair service usually qualifies for rather more complex fixes than those mentioned, yet it remains more economical than dumpster shopping for another microwave.

Door Switch Mechanism Verification

One of the under-recognized reasons why a microwave oven starts to fail is the malfunction of a door switch. Microwaves are furnished with safety devices that prevent them from operating until a door is securely latched. If the door switch is defective or misaligned, the microwave will remain unaware that the door is closed and will not respond to starting the button.

To test the door switch, you should open and abruptly shut the microwave door while the start button is pressed. If the door switch clicks, yet the microwave does not work, the switch is assumed defective. Changing the door switch entails removing the casing, locating the switch assembly, and replacing it with a new switch, making sure it is in proper order and properly installed.

Resetting and Testing the Microwave

Most frequently, resetting the microwave repairs resets any software issues. Many modern microwaves have electronic control systems that can become unstable with hardware changes and may need to be reset. Unplugging the microwave for a few minutes should act as a complete reset on the system. If the problem persists, it would be prudent to take the device to an authorized repair shop.

Conclusion

Though a major inconvenience, a microwave oven with a defective start button can easily be fixed within a short time using a few easy procedures and low expenses. In cases for which DIY solutions do not work out, helpful services from a micro oven service centre like RightCliq may help you get your microwave back in shape. Don't let a start button prevent you from pursuing your daily routines; act today and get your microwave back to its proper working condition.

Resource: https://share.evernote.com/note/6fe91559-bdbe-b0a3-e047-79f7f4f870d4