One of the most frequent breakdowns In Polti steam irons, our ironing center throws water through the iron instead of steam. When we observe that a lot of water comes out due to the resistance of the iron, and that the sole does not heat enough,.com The fault is likely to be found in the appliance's iron regulation thermostat.


In electrotodo and have more than 30 years in repair of irons and all types of appliances, so we are going to try to explain in the simplest way possible how to carry out this repair.


In this tutorial we are going to address the replacement of the Polti iron thermostat in a few simple steps so that the repair is easy to carry out. You can also follow these steps and see how a specialized technician performs them by visiting our tutorial on YouTube.

Time for a repair:

· approximately 30 minutes


· Intermedia

Tools needed:

  • Torx 10 screwdriver
  • Tamper-proof Torx 20 screwdriver (hollow)
  • Flat screwdriver (small)
  • Phillips screwdriver (medium)
  • · Pliers




  • The first thing is remove the rear cover of the iron, with the Torx 10 screwdriver, remove the two rear screws.
  • Remove the front screw of the casing (Torx 20 screwdriver), it is on the metal part of the plate.
  • Remove (Torx 10) screws that hold the rear covers, under the connection strip.
  • Separate cable connection strip (star screwdriver)
  • Remove (Torx 10) screws that hold the rear casings, behind the connection strip.
  • Remove the thermostat knob by prying it with the flat screwdriver (small).
  • Pull the front housings to separate the top and bottom of the iron.
  • Remove thermostat shaft insert (a small black piece fitted to the thermostat shaft).
  • Remove (star) the two screws (with their washers) that hold the metal support where the casings are mounted.
  • Remove the retaining flange from the steam tube that is on the back of the iron and separate the tubes to be able to maneuver freely.
  • Remove the metal cover/trim that goes on the heating element of the iron.

· The thermostat is only fixed to the resistance of the iron with a screw, it must be removed with the Phillips screwdriver.

· Remove (small plane) the cables that go from the thermostat to the connection strip. Be careful to photograph the position of the cables, because sometimes the manufacturer changes the color of their protections.

· Remove the damaged thermostat and replace it with the new replacement.



For the assembly we are going to follow the above steps in reverse order, (although with some changes) as follows:

  • Screw (star) the new replacement thermostat to the resistance axis and check that it is aligned vertically on the iron and that we remove the thermostat cables from the back of the trim.
  • Place the metal cover/trim that goes on the heating element of the iron. **Be careful that the metal of the trim does not touch the rear terminals of the resistor!!
  • Place the thermostat cables in the same position on the rear connection strip. Screw with the flat screwdriver.
  • Place the metal support where the housings are mounted and screw in the two screws (with their washers) with the star screwdriver.
  • Place the upper casings, first place the front part and then fit the rear part into its corresponding place.
  • Snap on the thermostat cover.
  • Fix the screw of the front casing.
  • Fix the two screws on the rear casing, which go under the connection strip.
  • Connect the steam tube that carries the steam from the boiler to the iron tube and secure with the clamp. This metal clamp is placed on the iron tube (below). It will be necessary to use pliers.
  • Hold the strip on the axis that serves as a support and screw it in with the star screwdriver.
  • Close the back of the iron with the two corresponding screws.
  • Place the insert on the iron thermostat shaft and, on it, in the correct position, the regulation knob.

All that remains is to try the iron! Check, first of all, that when you plug in the device there are no branch problems (they do not trip automatically). The next thing is to check that the iron heats up, this will prevent the water vapor from condensing when it reaches the metal of the resistance. Once the correct steam output has been verified and the resistance of the iron is heating up... We are done.

This repair, despite seeming complicated, due to the numerous steps to follow,.com Fairly simple, you just have to be organized and follow an established order.


Good luck with the repair!, you already know that if you have any questions, you can contact the customer service customer service of