A microwave is an indispensable household appliance for a kitchen. It is intended not only for heating food, but also for thawing, as well as for preparing some boiled, baked and stewed foods. Without the availability of such modern technology, it is impossible to imagine a kitchen, and where there is no high-frequency microwave oven, the functionality is drastically cut.
As with any household appliance, some parts are subject to wear. Defective items are repaired or replaced. Most often damaged:
- heating elements;
- boards;
- lighting;
- fuses for microwave.
How to make a replacement of a structural element that has failed, and how to determine if a fuse has blown, we will talk further.
What is it
Before studying the sequence of actions when replacing a fuse, you first need to figure out what kind of element it is and how it looks.
Microwave fuse protects the circuit. Distinguish details by type depending on the cause of the operation.
LG and Samsung modern wave ovens use fuses. Their peculiarity lies in the presence of a special metal thread inside a glass bulb. With a strong overvoltage, the internal element melts, breaking the circuit and depriving the power supply device. For the manufacture of yarns, various materials with different indicators of the boundary permissible current strength are used.
The appearance of the safety element
A microwave fuse is a sealed special ceramic or glass tube on which metal caps are mounted on both sides as contacts.
In the event of a fuse failure, it will not be able to trip on time and fulfill its function. In turn, this will lead to a broader problem - the failure of the stove. Therefore, when a fuse for a microwave burns out, replace it immediately.
Species variety of spare parts
There are three types of fusible protective mechanisms for a high-wave furnace:
- Network located at the input of the power cable. The fuse function is to protect the device from unpredictable power surges inside the network and the device cable from short circuits that occur in the event of a microwave oven breakdown.
- High-voltage, installed on the same platform with a transformer and protecting it from overloads resulting from a breakdown of the microwave generator.
- Another type of element is used in stoves with an electronic control system, powered by a separate energy source. Such a microwave fuse is located on the transformer itself and is well insulated externally. It is the hardest to replace.
Double-insulated high-voltage fuses are hidden in 90% of cases in special plastic enclosures that differ in size, shape and design. They consist of two parts and are connected by a jumper. The ends of the casings are supplemented with latches, by opening which the master gains access to the device.
Replacement Features
What to do when the fuse blows in the microwave? Just replace with a new part, selected depending on the brand and model of the furnace. The procedure is as follows:
- the appliance is disconnected from the network;
- remove the top cover from the oven;
- check the condition of the high voltage safety element;
- the fuse is removed, making sure that it is really out of order;
- a new part is inserted into a niche and the microwave is assembled in the reverse order.
Useful tips from experts
The following recommendations will help you to safely replace if the fuse in the microwave is blown :
- To remove the top cover, locate and unscrew the screws holding it.
- Fuses are checked for serviceability using a special device - a multimeter.
- Before acquiring a new element, the burnt part is examined under the lens in order to determine the current strength by the stamping applied to the surface of the bulb.
- Use only identical fuses or replace with fuses with the same amperage. Otherwise, the part will quickly fail.
- Remove the high voltage fuse using a screwdriver and special tweezers.
- Avoid touching other metal parts of the oven.
- Remember that it’s sometimes safer to get new equipment than to change something in an old often breaking microwave.
Remember that this device, while unplugged, is still unsafe. Some of the internal elements accumulate an electric charge and are able to maintain it for some time. To avoid electric shock, wait a few hours and only then begin work on replacing the fuse. Feeling uncertain about the abilities and actions, if the fuse blows in the microwave , it is better to contact a specialist.