Ignition Module Saunier Duval Master Twin L 85 E Ref. 05602400
When you turn on the tap or activate the heating, the Saunier Duval Master Twin L 85 E Ignition Module is responsible for controlling the ignition and modulation of the burner, as well as the pump and safety features of the boiler. If this part fails, you will notice that the boiler does not start, locks out, or exhibits erratic behavior, and you might see the fault codes F.28 or F.29. This module is compatible with boilers from the Thelia Twin, Themis Twin, Thelia, Sylva, and Master Twin ranges, among others. It should be replaced when these ignition or operational issues occur.
VAT included
Consult via WhatsAppSaunier Duval boilers compatible with reference 05602400
PCB with reference 05602400. Five confirmed compatibilities: Thelia Twin 28 E and Themis Twin 28 E.
Proven compatibility
| Boiler model | Family | Verification |
|---|---|---|
| Saunier Duval Thelia Twin 28 E | Thelia Twin | Contrasted |
| Saunier Duval Themis Twin 28 E | Themis Twin | Contrasted |
| Saunier Duval Thelia 30 E | Thelia | Contrasted |
| Saunier Duval Sylva 24 E | Sylva | Contrasted |
| Saunier Duval Master Twin L 85 E | Master Twin | Contrasted |
Can't see your model or have questions? The printed reference takes precedence. How to check it · Send us a photo via WhatsApp.
How to check if ref. 05602400 is the part for your boiler
What determines it is not the boiler model, but the reference printed on the part you already have installed.
- Find the reference printed on the installed part and check whether it matches the catalogue reference 05602400. If it is not visible, do not identify the part from its shape alone.
- Check the full boiler model on its data plate and look for it in the model associations on this page.
- Compare the connections and physical body with the original part before installation.
- If anything is unclear, send us a photo of the marking via WhatsApp before placing your order.
Symptoms and faults that the PCB 05602400 resolves.
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 the burner when heat is requested.
Cause: The ignition module is faulty and does not generate a spark, although the rest of the boiler is functioning well.
Look through the peephole or grille to see if a spark occurs when requesting heat: if you don't see a spark, the module is the main suspect.
- 02
Intermittent ignition: sometimes it lights and sometimes it doesn't, with weak spark.
Cause: The module deteriorates with heat and use, and does not provide enough energy for a constant spark.
Measure if the fault worsens when the boiler is hot after running for a while: this thermal pattern is typical of the module, not the electrode.
- 03
The boiler locks up when trying to start and requests a reset.
Cause: If the module does not ignite the burner within the safety time, the boiler locks out due to flame detection failure.
Check the condition of the electrode and its wiring before replacing the module: a loose or poorly connected electrode can cause the same lockout.
Fault codes from Saunier Duval that this spare part resolves.
| Code | Fault | Diagnosis and solution |
|---|---|---|
| F.28 | Ignition fault of the burner | The burner does not ignite after five attempts, indicating a problem in the ignition process. This may be due to a fault in the ignition module. Check the gas supply and the condition of the module. |
| F.29 | Ignition fault of the burner | The burner does not ignite after five attempts, indicating a problem in the ignition process. This may be caused by a fault in the ignition module. Make sure that the gas is reaching properly and that the module is functioning correctly. |
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.
Data sheet for the Saunier Duval 05602400 PCB.
- Catalogue reference
- 05602400
- 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
Manuals and technical documentation
Official documentation of the boiler, useful for locating the part and cross-referencing the fault codes.
- Saunier Duval THELIA TWIN 28 E Manual (PDF)Document © Saunier Duval, provided as a technical reference.
Frequently asked questions about the PCB 05602400
Is this module valid for my Sylva 24 E?
How is this module identified in a Thelia Twin 28 E?
When should the ignition module be replaced in a Thelia 30 E?
Spare parts related to Saunier Duval Thelia Twin
