Saunier Duval Combitek F23E PCB Ref. 05728600
Refurbished Saunier Duval PCBs (control boards)

Saunier Duval Combitek F23E PCB Ref. 05728600

If your boiler does not start, locks out, or behaves erratically, a technical diagnosis must confirm if you need the Saunier Duval Combitek F23E PCB. This control board is responsible for managing the ignition, burner modulation, pump, and safety features of the boiler. When it fails, you may notice these issues in its operation. It is installed in models such as Combitek F23E and Combitek C23E, among other boilers in the range. A technician must confirm through diagnosis if it needs to be replaced upon detecting these symptoms to restore the operation of your boiler.

Type of part
PCBs (control boards)
Status
Refurbished
Catalogue reference
05728600
Warranty
1 year
VAT included Stock · 5 units
Compatibility

Saunier Duval boilers compatible with reference 05728600

PCB with reference 05728600. Two confirmed compatibilities: Combitek F23E and Combitek C23E.

Proven compatibility

Boiler modelFamilyVerification
Saunier Duval Combitek F23ECombitekContrasted
Saunier Duval Combitek C23ECombitekContrasted

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

Guide

How to check if ref. 05728600 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 05728600. 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 05728600

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 ignite and shows no signs of life: no lights, no display, and no noise from the fan.

    Cause: This PCB distributes power to the other components; if it fails, no current reaches anything.

    Check the fuse on the PCB and verify that 230V is reaching its input before replacing it.

  • 02

    The boiler ignites but turns off by itself after a few minutes, without a clear pattern.

    Cause: An intermittent fault in the PCB (cold solder joint or component overheating) erratically cuts off the supply.

    Note if the cut coincides with the use of domestic hot water or heating: it helps to distinguish a fault in the PCB from one in the associated sensor.

  • 03

    The display shows a different fault code each time, with no clear relation to what is actually happening.

    Cause: The error management of the PCB is damaged and generates incorrect readings from the sensors.

    Note the codes that appear and compare them with the manual before discarding the PCB; a repeated code usually indicates another component.

  • 04

    The boiler does not respond to temperature changes from the control or the thermostat.

    Cause: The circuit that receives the command from the thermostat and activates the burner is not working.

    Check that the thermostat has batteries and that its cable is properly connected to the PCB before replacing it.

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 05728600 PCB.

Catalogue reference
05728600
Uniclima internal SKU
PLCCBTK
Brand
Saunier Duval
Type of part
PCBs (control boards)
Units in stock
5 units
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 silk-screened code
ST13B
Silkscreened secondary code
TP9644E / EEV9SZ1FT
Relay code
23939-A (tentative reading)
Main IC label text
CHANTIER HCTA 077C
Documentation

Manuals and technical documentation

Official documentation of the boiler, useful for locating the part and cross-referencing the fault codes.

Frequently Asked Questions

Frequently asked questions about the PCB 05728600

Which models are compatible with the Saunier Duval Combitek F23E PCB Ref. 05728600?
It is compatible with the Combitek F23E and Combitek C23E models.
What does 'CHANTIER' mean on the label of this PCB?
It is a French word that indicates a batch or manufacturing work, not a manufacturer.
When should I replace the Saunier Duval Combitek F23E PCB?
The technical diagnosis must confirm whether it is necessary to replace the PCB when it shows an electronic fault; the material does not specify concrete symptoms.
What is the reference for this PCB?
PLCCBTK is Uniclima’s internal SKU for locating this listing. To confirm compatibility, check the manufacturer’s reference and the exact appliance model.
Are there any fault codes associated with this PCB?
No, there are no documented fault codes for this product.

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Saunier Duval Combitek F23E PCB Ref. 05728600