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My Polti center does not steam: replace the solenoid valve

When a solenoid valve breaks down, our iron can steam continuously or, on the contrary, not steam at all. The opening valve of the boiler does not obey our orders as usual.

When a solenoid valve breaks down, our iron may steam continuously or, on the contrary, not at all.

Material needed:

Material needed:

Material required:

  • Tester or multimeter
  • Screwdriver
  • 8/9" open end wrench
  • 14/15 open-end wrenches
  • The electrovalve of the ironing centers is the part that is activated in the boiler part when the steam button of the iron is activated. In other words: we give the order on the iron by pressing the button, and this order is transmitted through the tube to an electromechanical part that opens the boiler momentarily.

    A malfunction in the solenoid valve can come from its mechanical part (a blockage of the valve, which, although it receives the electrical order, does not respond properly to it) or from the electrical part (the electrical coil that activates the valve receives activation, but does not execute it).

    It is likely that, if the steam microswitch works properly (it can usually be checked simply by its sound when activated: click, click!), but no steam comes out of the iron: the fault is in the solenoid valve of the ironing center.

    Dismantling

    Disassembly

    • Disassemble the lower housing of the ironing center boiler: 5 screws (Phillips screws) located in the lower housing must be removed.
    • The electrovalveis the part located on the upper part of the boiler: it consists of a fitting with a valve and an electric coil that activates the valve when the microswitch of the iron is pressed (the "steam button", come on).
    • Check with a polymeter or tester the continuity of the solenoid valve coil. Selecting the Ohms position on the tester, put each terminal of the tester on one of the terminals of the coil, if the part is not cut it should indicate "0" on its display, however, if the coil has an electrical problem, there will be no variation when placed on the terminals.
    • To change the electrovalve (link) it is necessary to use to loosen it from its housing in the boiler an 8/9 open-end wrench
    • .
    • It is advisable to use a specific joint sealant (link) so that there are no leaks in the union thread, apply the sealant on the thread of the solenoid valve, when heated the sealant will finish making a perfect joint.

    Assembly

    • Screw the solenoid valve back into place with the wrench.
    • Screw the solenoid valve back into place with the wrench.

    * You can also just replace the solenoid valve coil by loosening it with a 14 wrench, but it is not recommended to replace only this part, as the problem may persist, since the mechanical part of the valve may still show a malfunction.

          • Change the wires from the old coil to the new one (the position of the poles does not influence the operation)
          • .
          • The screws of the lower housing are replaced.

          If there is no other fault in the iron (problems in the microswitch, or a fault in the monotube that connects the iron to the boiler of the ironing center), we can check that, when pressing the steam button on the iron, the solenoid valve is activated (and makes a characteristic noise, a clicking noise in the boiler each time it is pressed: clack, clack!

          Check that, as the boiler heats up, already steam comes out again normally.

          A bit confusing? We also leave you a video from our YouTube channel where, step by step, you can see a technician perform this repair.

          Thank you very much and good luck!!!

          .