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Change of the antiparasite of a microwave

The antiparasites, as their name suggests, have the function of avoiding interference, therefore the proper functioning of audio-visual and electronic devices (television, radio, computer, telephone, etc.). They are formed of different components (capacitor, self, resistance) which clash the high frequencies disturbing the sector. When a suppressor fails, it usually cuts off power to the device. It must then be replaced purely and simply.

Necessary material

  • Flat and Phillips screwdriver
  • Isolated pliers

You must first identify the screws that secure the cover of the device.

Locate the hood screws

1. Locate the oven cover fixing screws. They are usually placed on the side of the device.

Choose an unscrewing tip exactly matching the footprint of the fixing screws.

Undo the side fastening screws

2. With a suitable impression screwdriver, undo the screws securing the cover.

A series of screws also holds the hood at the back of the oven.

Locate the rear screws

3. Often the hood is also attached by screws to the back of the unit. Locate them.

Undo the various screws that hold the hood at the back of the oven.

Undo the rear fixing screws

4. Undo the various screws that hold the hood from the back. Store them carefully to find them easily when reassembling.

All the screws being undone, simply pull the cover upwards to release it.

Undo the hood

5. Remove the hood by disengaging it from above. Be careful not to cut yourself with the sharp edge of the sheet!

It is necessary to start by discharging the capacitor by putting its two terminals in contact with a universal clamp.

Unload the capacitor

6. Before all else, take an insulated clip and discharge the capacitor by placing the clip on the capacitor terminals to create a short circuit.

A grommet ensures the passage of the power cable at the rear of the unit.

Power cable

7. Locate the power cable. You have to disconnect different wires. Do not hesitate to take a picture of the location of all the connections to be able to put them back correctly during the reassembly phase.

A round lug, held by a screw ensures the connection of the ground wire on the carcass of the device.

Undo the lug of the ground wire

8. First undo the screw for fixing the terminal of the earth wire (green-yellow)

Flat lugs connect the phase (brown) and neutral (blue) wires.

Disconnect the power wires

9. Disconnect the brown wire (the phase) then the blue wire (the neutral). Take out the power cable.

Before disconnecting them, identify the order of connection of the noise suppression wires.

Son feeding the suppressor

10. Next, locate the power and ground wires for the suppressor. As for the power cable, remember the order of connection of the wires.

The nut of the ground lug fixing screw must be held down with pliers, and the screw must be unscrewed with a Phillips screwdriver.

Ground wire of the suppressor

11. Unscrew the yellow wire (earth) using a pair of pliers and a Phillips screwdriver. It is attached to the oven frame by a bolt.

It is now necessary to disconnect the flat plugs connecting the power supply wires of the suppressor.

Disconnect the power wires

12. Disconnect the brown wire (the phase) then the blue wire (neutral).

Lever with the blade of a flat screwdriver to unclip the suppressor.

Unclip antiparasite

13. The faulty suppressor is simply clipped onto the back of the unit. Lever with the flat blade of a screwdriver to release it.

Now you just have to pull the suppressor to take it out.

Clear faulty suppressor

14. Clear the parasite.

Clip the new antiparasite instead of the old one.

Clip the new antiparasite

15. Take the new suppressor and house it properly. Clip it on the back wall.

Properly insert the power plugs of the suppressor on their terminals.

Reconnect the wires from the suppressor

16. Ban the blue (neutral) and brown (phase) wires on the new antiparasite.

As with disassembly, it is necessary to lock the nut of the screw of the earth terminal to be able to tighten this one.

Reconnect the ground wire

17. Screw in the yellow wire terminal (ground) with a screwdriver and pliers.

The power cable can be replaced at the rear wall.

Replace the power cable

18. Take the power cable and replace it.

It is now possible to reconnect the lugs of the power supply wires.

Reconnect the power wires

19. Reconnect the blue and brown power leads.

Tighten the grounding lug fixing screw securely on the rear wall of the unit.

Connect the ground wire to the back wall

20. Do not forget to reconnect the ground wire (green-yellow) on the rear wall of the unit. Lock the screw securely.

Reposition the cover on the device and press it down to make sure it fits.

Replace the hood

21. Replace the cover. It must be inserted correctly to find the position of the locking screws.

If the hood is properly positioned, it is easy to replace the screws before blocking them.

Refit the hood

22. Replace the screws at the back and on the sides of the oven.

(photos / visuals: © Spareka, except special mention)

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