You have already set the dish for warming up, but it turned out that the buttons do not work on the microwave? What to do? You can contact the service for help, or you can fix the breakdown yourself.
Why touch buttons do not work
First, let's figure out what the keys on the sensor are. The mechanism consists of two films, on the surface of which tracks are applied - they conduct current. When the button is pressed, the pulse passes through the membrane along the path to the main board, after which the selected mode or another command is launched.
Most users prefer the touch control panel, because it opens up great opportunities. By pressing one key, you can select the cooking mode or heating time. Such microwave ovens look stylish and modern. It just does not take into account that electronics is sensitive to power surges. Overvoltage leads to burnout of contacts.
The sensor does not tolerate rough handling. Pressing hard will push the button.
If the “Start” button or another key is not pressed, you can do it yourself.
Microwave Touch Panel Repair
What are the signs of a panel breakdown in the microwave ovens of Samsung, LG, Daewoo and others:
- The device independently turns on and off.
- Separate keys do not respond to clicks.
- The door open button does not work.
Often, forums ask questions: how to open the door if the open button is broken? How to fix the product? In any case, you will need to remove the casing and inspect the internal parts in order to understand what is the matter.
Prepare the tools:
- Phillips screwdriver
- thin knife;
- tweezers;
- adhesive tape or electrical tape;
- glue.
Before proceeding with the repair, unplug the microwave oven from the mains.
Important! Even when unplugged, some parts of the microwave accumulate electricity. Therefore, repairs must be done carefully.
How to repair the panel:
- Remove the screws that secure the microwave housing.
- Pull the pins out of the connectors. It is advisable to photograph their location in order to properly connect in the future.
- Remove the cover plate bolts.
- Remove the control module.
- Carefully use a thin knife to detach the sensor.
- Remove the top film-like layer from the control panel.
- Inspect the contacts and other elements for damage, burns.
How to fix the equipment, if the problem is in the contact closure? Follow the recommendations:
- To eliminate the short circuit, you need to create a distance between the two plates.
- To do this, glue a piece of adhesive tape or insulating tape from the inside.
- Connect the two parts and reinstall the sensor, reconnect.
- If the keys work, then the repair was a success.
The described repair is a temporary measure. You need to understand: if the buttons began to squeeze, stick, sink, only a complete replacement of the panel will help.
Another problem is possible - the oxidation of the tracks.
- After disassembling the panel, wipe the oxidized area with a solvent.
- To repair the damaged part of the track, use conductive glue. Apply it in a thin layer to the gap. Wait for it to dry. Assemble the panel in the reverse order.
If this does not help, take note of the experience of one user. After the repair was carried out according to the described recommendations, the management work did not recover. Then instead of glue, aluminum foil was used.
- Cut a thin strip of foil.
- Glue to the track with glue.
If you have not been involved in repair work before, it is better to contact a specialist. Electronic control is very sensitive, so use the microwave carefully. To avoid problems with surges in the network, install a voltage regulator.