Delta Dore Internal Interface PCB 4000135535
Refurbished Saunier Duval PCBs (control boards)

Delta Dore Internal Interface PCB 4000135535

The Delta Dore 4000135535 internal interface PCB is an electronic control component that regulates the ignition, burner modulation, pump, and safety features of the boiler. When it malfunctions, the user will notice that the boiler does not start, locks out, or exhibits erratic behavior. This model is compatible with several Saunier Duval boilers, among others. The need for replacement of this PCB should be confirmed through diagnosis when these symptoms are observed, as its malfunction directly affects the operation of the boiler.

Type of part
PCBs (control boards)
Status
Refurbished
internal SKU
PEMF25MOD
Warranty
1 year
VAT included Stock · 3 units
Guide

How to check if it is the part for your boiler

The part reference, model, and equipment revision must be verified against the manufacturer's documentation.

  1. Find the reference printed on the installed part and check whether it matches the catalogue reference —. If it is not visible, do not identify the part by its shape alone.
  2. Check the full boiler model on its data plate and look for it in the model associations on this page.
  3. Compare the connections and physical body with the original part before installation.
  4. If anything is unclear, send us a photo of the marking via WhatsApp before placing your order.
Diagnosis and fault codes

Symptoms that require diagnosis on the PCB

The PCB controls the ignition, modulation, and safety features of the boiler. These are the typical symptoms and what to do:

Common symptoms and faults

  • 01

    The boiler does not turn on: there are no lights, screen, or sound.

    Cause: The PCB manages the power supply and control of the boiler; if it fails, there is no activity even if it receives power.

    Check the fuse on the PCB and verify that the voltage is correctly reaching the input terminal block.

  • 02

    The display is flashing or showing a fixed fault code that does not change.

    Cause: The electronics block the boiler when detecting an incorrect reading from one of the sensors.

    Note the code and rule out water pressure and flue gas evacuation issues, which are the most common causes of blockage.

  • 03

    The remote control or the panel do not change the temperature or the operating mode.

    Cause: The PCB interprets those commands; if the communication module fails, the boiler does not respond.

    Turn off and on the boiler from the main switch before considering that the PCB is faulty.

  • 04

    The relays on the PCB are making repeated clicking sounds without the boiler starting.

    Cause: A relay that does not close properly prevents the ignition or the pump from activating at the right moment.

    Listen for the click to see if it coincides with the burner ignition attempt before replacing the PCB.

These symptoms can have more than one cause. If your boiler displays a fault code, send it to us via WhatsApp along with a photo of the labeling, and we'll tell you if this is the part.

Technical data

Saunier Duval PCB data sheet

Uniclima internal SKU
PEMF25MOD
Brand
Saunier Duval
Type of part
PCBs (control boards)
Units in stock
3 units
Status
Refurbished
Warranty
1 year
Shipping
Delivery time shown at checkout
Return
14 days
Entrega calculada por destino Delivery time shown at checkout
1-year warranty reviewed and tested
14-day return uninstalled parts
Technical support we verify your model
Delta Dore Internal Interface PCB 4000135535