Label：Troubleshooting Methods, Damaged Membrane Switch, Internal Circuit
May 7, 20222480
Membrane switches appear in every corner of our daily life: washing machines, microwave ovens and every instrument you use in your work. About 80 percent of electrical equipment uses membrane switches. Once one of the switches fails, how do we troubleshoot and repair it? In this blog, JRPanel would like to explain how to troubleshoot and repair the faulty membrane switch.
The first step is to locate the damaged part. Press all the buttons and see if the various functions of the device are activated.
If ONLY 1 OR 2 BUTTONS do not respond, the metal dome may be broken or displaced. We can use the hot air from the hair dryer to heat the product for 5 to 10 minutes. The purpose of this is to reduce the viscosity of the adhesive by heating.
The metal dome is on the third layer at the bottom of the membrane switch, and we can disassemble it to check or replace the dome.
If NONE OF THR BUTTONS respond, then we need to check for loose or damaged terminal housings at the end of the circuit. At the same time, don't forget to check the internal circuit. Once the circuit fails, we need to replace is the entire membrane switch.
To replace the membrane switch panel of the same model and specification, we only need to remove the control panel. The operation is very simple. Reading this article: Top 5 Biggest Membrane Switch Installation Mistakes will help you avoid installation mistakes.
Microswitches are also an option if you can't get a membrane switch panel. The circuit design should follow the old membrane switch. As for how to install the micro switch, we can complete it by drilling holes, silicone fixing and wiring.
If you have any questions about membrane switches, welcome to JRPanel!