Saunier Duval Thematek PCB Ref. S1047000

Saunier Duval Thematek PCB Ref. S1047000

The Saunier Duval Thematek PCB is the control heart of your boiler. Its function is to regulate the ignition, the modulation of the burner, the pump, and the safety features of the boiler. When it malfunctions, you may notice that the boiler does not start, gets locked, or behaves erratically, displaying fault codes such as F11, F12, F13, or F18. This PCB is compatible with several models from the ThemaClassic, Themafast, Thematek, Isotwin, and Isofast ranges, among others. A technician must confirm through diagnosis whether it is necessary to replace it when these issues are detected or if the boiler is operating inadequately.

Catalogue reference
S1047000
Warranty
1 year
VAT included Stock · 1 unit
Compatibility

Saunier Duval boilers compatible with reference S1047000

PCB with reference S1047000. 33 verified compatibilities: F 25 E and F 24 E.

Proven compatibility

Boiler modelFamilyVerification
Saunier Duval F 25 EThemaClassicContrasted
Saunier Duval F 24 EThemaClassicContrasted
Saunier Duval C 24 EThemaClassicContrasted
Saunier Duval C 25 EThemaClassicContrasted
Saunier Duval C AS 24 EThemaClassicContrasted
Saunier Duval C AS 25 EThemaClassicContrasted
Saunier Duval F AS 24 EThemaClassicContrasted
Saunier Duval F AS 25 EThemaClassicContrasted
Saunier Duval F AS 30 EThemaClassicContrasted
Saunier Duval C 24 EThemafastContrasted
Saunier Duval C 25 EThemafastContrasted
Saunier Duval C 28 EThemafastContrasted
Saunier Duval C 30 EThemafastContrasted
Saunier Duval F 24 EThemafastContrasted
Saunier Duval F 25 EThemafastContrasted
Saunier Duval F 25 E H-MODThemafastContrasted
Saunier Duval F 30 EThemafastContrasted
Saunier Duval F 30 E H-MODThemafastContrasted
Saunier Duval C 24 EThematekContrasted
Saunier Duval C 24 EO BTThematekContrasted
Saunier Duval F 24 EThematekContrasted
Saunier Duval S C 24 EThematekContrasted
Saunier Duval S F 24 EThematekContrasted
Saunier Duval C 24 EAIsotwinContrasted
Saunier Duval C 28 EAIsotwinContrasted
Saunier Duval C 24 E ad04IsotwinContrasted
Saunier Duval C 24 E de04IsotwinContrasted
Saunier Duval F 24 EIsotwinContrasted
Saunier Duval F 24 EAIsotwinContrasted
Saunier Duval F 28 EAIsotwinContrasted
Saunier Duval F 30 E H-MODIsofastContrasted
Saunier Duval F 35 E H-MODIsofastContrasted
Saunier Duval F 25 E STLThemaContrasted

Can't see your model or have questions? The printed reference takes precedence. How to check it ·

Guide

How to check if ref. S1047000 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 S1047000. If it is not visible, do not identify the part from 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 S1047000

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, not even a single indicator light, as if it is not receiving power.

    Cause: The PCB may have a blown input fuse or a damaged power circuit, cutting off the supply to all the electronics.

    Make sure that the boiler is receiving power (plug, circuit breaker, installation fuse) before declaring the PCB dead.

  • 02

    A fault code appears on the screen that comes and goes, without a clear pattern.

    Cause: An intermittent fault on the PCB, due to cold solder joints or damaged traces, generates errors that do not always repeat in the same way.

    Note the exact code and try resetting the boiler to see if the fault reappears before changing the PCB.

  • 03

    The remote control or the thermostat is unable to communicate with the boiler.

    Cause: The communication stage of the PCB may have failed, leaving the dialogue with the control unit cut off.

    Check the wiring connection of the control panel on the terminal block of the PCB before replacing it.

  • 04

    The boiler turns on and off by itself without anyone touching the thermostat.

    Cause: A relay on the PCB that does not cut off properly can erratically activate the burner or the pump.

    Listen for the clicks of the relays when starting up and check if they match with turn-ons that you did not request.

Fault codes Saunier Duval that require diagnosis

CodeFaultTechnical checks
F13Main PCB faultYes — it is the direct code of the PCB. Check 230 V, fuse, connectors, and grounding; if it persists, replace the PCB.
F11No signal is reaching the main circuitPossible — first rule out wiring and connectors to the PCB; if they are fine, it is usually the PCB.
F12No signal from the user interfaceNormally not — it's usually the display or its cable, not this main PCB.
F18User interface faultNormally not — it corresponds to the panel/display, not to this 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

Data sheet for the Saunier Duval S1047000 PCB.

Catalogue reference
S1047000
Uniclima internal SKU
PETSC24E
Brand
Saunier Duval
Type of part
PCBs (control boards)
Units in stock
1 unit
Status
Refurbished
Warranty
1 year
Shipping
Delivery time shown at checkout
Return
14 days

Part data and available documentation

Contrast the label codes, PCB, and revision with the installed part; they are not necessarily equivalent references.

PCB model (silkscreen)
SYMSI7.0
Brand printed next to the triangle
SUNG WEI 00V0-A
Connectors / terminals
ZIG, V3V, H5, OU/REMP, P2/P1, H9, uA, EXT, TA, 230V ALIM, 230V
Manufacturer of the part
Saunier Duval
Reference
S1047000
Frequently Asked Questions

Frequently asked questions about the PCB S1047000

Does the PCB Ref. S1047000 also work for Glow-worm boilers?
Yes, the reference S1047000 is shared between Saunier Duval and Glow-worm, both brands of the Vaillant group.
What was the previous reference of the PCB S1047000 in Glow-worm?
802038 / 2000802038.
Which brand manufactures the PCB Ref. S1047000?
Saunier Duval, confirmed by several independent external sources.
Is this PCB S1047000 suitable for a Saunier Duval Isotwin?
Yes, it is among the compatible ranges, along with Isofast, Isosplit, Thema, Themaclassic, Themafast, Themaplus, and Thematek.

Spare parts related to Saunier Duval ThemaClassic

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
Saunier Duval Thematek PCB Ref. S1047000