Microswitch for Vaillant boiler code 257943

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Sale price40,83€ Regular price45,37€
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Description

The Vaillant 257943 microswitch is an electrical component designed for Vaillant brand boilers. Its main function is to detect the presence of flame or water pressure, allowing the proper operation of the boiler's ignition and safety system. It acts as a low-voltage switch that sends signals to control the burner’s ignition and shutdown.

What problem does this replacement part solve?

  • Boiler that does not ignite due to flame detection failure.
  • Frequent ignition interruptions caused by electrical signal failure.
  • Boiler that shuts off unexpectedly due to issues with internal sensors.

Compatible with various Vaillant boilers from the MAG and MAGXI ranges, among other related series.

  • Vaillant MAG 19/2
  • Vaillant MAG 24/2I
  • Vaillant MAGXI
  • Vaillant MAG 275
  • Vaillant MAG 242/3
  • Vaillant MAG 282/3
  • Vaillant atmoMAG
  • Vaillant turboMAG
  • Part type: electrical microswitch
  • Compatible brand: Vaillant
  • Code(s): 257943 (original Vaillant)
  • Approximate dimensions: 6 cm height x 8 cm width x 9 cm depth
  • Connection: terminals for standard electrical wiring
  • Function: flame detection and ignition on/off control

Before purchasing, verify that the part code 257943 or your Vaillant boiler model matches this microswitch to ensure full compatibility.

Purchase, return, shipping

Returning the value of your order is free and in full for 14 days after receiving the order. However, remember that the costs of return shipping are at your expense. You can consult the complete return policies here.

Depending on where you place your order and the weight of the package, shipping costs may vary. In any case, you can calculate the shipping price on the cart page before completing your purchase.

Of course! In addition to home delivery, you can pick up your order at collection points. You just have to select this option before payment and find the location that suits you best.

The return shipping cost is the same as the original shipping cost paid.

Electrotodo offers the most common payment methods in each country: cards, gateways, bank transfer. You can verify your payment method before making your purchase.

Product

If an item has any damage caused during transport, you have 24 hours from the time of receipt to notify us so we can manage the incident.

Enter the model of your appliance in our website's search bar to find your spare part, and if you already know it, enter the reference number of the part you need.

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