For the primary, depending on the microwave

[shapanwwuom]

Capacitors, including high-voltage ones, are checked by measuring their resistance with an ohmmeter. If the device shows infinity, everything is fine. If the readings are 0 or several ohms, the part is replaced. If the resistance of a high-voltage capacitor is 1 megohm, it means that it has a discharge resistor and is suitable for use.

The test is performed with an ohmmeter, which measures the resistance of the windings. model, it should be in the range of 2 - 4.5 Ohms, The resistance of the high-voltage winding is from 140 to 350 Ohms. The norm for the filament winding is a range of values ​​of 3.5 - 8 Ohms.

If the fault is not detected and the microwave does not australia telegram data heat, proceed to check the magnetron. To do this, remove the top cover, disconnect the terminals with wires and measure the resistance between the terminals.

If the ohmmeter shows several Ohms, the filament is intact; if it is infinity, it is broken and the magnetron must be replaced. If the filament is intact but the magnetron does not work, it is necessary to check the serviceability of the feedthrough capacitors located near its terminals and, if necessary, replace these capacitors.

The reason may also be a violation of contact in the places where their leads are soldered.

To remove a faulty magnetron, you will have to remove the transformer and waveguide and unscrew 4 bolts. It is not necessary to use exactly the same type for replacement, any other type (for example, from a Mystery mmw microwave) with similar power characteristics will do.

First, the source of the humming noise is determined. If it is a transformer, then it is replaced with a similar one. A working fan usually hums due to overheating of the system. To stop it, it is enough to move the stove away from the wall or clean the blades.