Siemens LMU34.210B349 PCB · CIB 100200 for Baxi Roca Novanox Platinum 24/24F
Aplicación a la variante exacta pendiente de confirmar. Unidad de gestión de caldera Siemens, denominada Boiler Management Unit, que regula el quemador mediante la velocidad del ventilador. La serie LMU34 contempla errores de sonda 10, 20 y 28, además de bloqueo no volátil por pérdida de llama.
- Type of part
- PCBs (control boards)
- Status
- Refurbished
- Catalogue reference
- 56.8835.3
- Warranty
- 1 year
VAT included Stock · 2 units
Boilers Siemens compatible with reference 56.8835.3
Placa electrónica con referencia 56.8835.3. 0 compatibilidades contrastadas. Hay otros 2 modelos que todavía estamos comprobando.
Models pending verification
These models are associated with this reference, but we have not finished verifying them yet, so we do not consider them compatibleIf your boiler is one of them, send us a photo of the part you are going to replace and we will verify it before you purchase.
| Siemens Baxi Luna 3 HT Comfort | Siemens | Unconfirmed |
|---|---|---|
| Siemens Baxi Roca Novanox Platinum 24/24F | Siemens | Unconfirmed |
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 reference 56.8835.3 is the part for your boiler
The part reference, model, and equipment revision must be verified against the manufacturer's documentation.
- Look for the designation Siemens LMU34.210B349 and the circuit code CIB 100200 on the PCB.
- Also compare the marked codes 56.8835.3 and 08213219. Don't rely solely on "LMU34": there are different versions and models.
- Our brand 230 V~ 50 Hz and software V02.11. A LMU34 from another version (for example, 2.09) may be another variant.
- coinciden, llámanos al 911 17 77 77 con el modelo de tu caldera.
Symptoms that require diagnosis on the PCB 56.8835.3
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 pump does not activate and there is no voltage reaching its relay on the PCB.
Cause: Case from a technical forum with this PCB in a Baxi Luna 3 HT Comfort: there was no voltage in the pump's power supply or in the coil of its relay on the board. A user in the thread attributed it to a general fault in the electronics: loose connectors, wet contacts, frayed wires, or a defective board.
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 sheet: Siemens 56.8835.3
- Catalogue reference
- 56.8835.3
- Uniclima internal SKU
- PLC148
- Brand
- Siemens
- Type of part
- PCBs (control boards)
- Units in stock
- 2 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.
- Power supply/frequency
- 230 V~; 50 Hz
- Software version
- V02.11
- TSAmax marked
- 5 s
- Country of manufacture marked
- Made in Germany
- Inventory — Subcomponent OMRON G5LE-1-V relay
- 24 VDC coil; contacts 10 A 250 VAC~ and 5 A 250 V~
- Inventory — Subcomponent OMRON G5LE-1-V-D relay
- 24 VDC coil; contact 10 A 250 VAC
- Inventory — Lower relay subcomponents
- 5 A 250 V~
- Inventory — Visible regulatory marking
- RoHS
- Inventory — Application indicated in inventory
- ROCA NOVANOX PLATINUM 24/24F
- Inventory — Marked code
- 1001280018; 08213219
- LMU34.2 series — Power supply
- AC 230 V (LMU34.2) · Siemens CC1N7491.1en
- LMU34.2 series — Consumption without loads
- 10 VA · Siemens CC1N7491.1en
- Dimensions and weight
- 160 × 127 × 43.05 mm · ≈ 300 g · Siemens CC1N7491.1en
- Burner power
- Up to 70 kW, modulating the fan · Siemens CC1N7491.1en
- LMU34.2 series — Installation
- Vertical · closed casing · IP40 min. · Siemens CC1N7491.1en
- Identification — Marked designation
- LMU34.210B349
- Identification — Marked code
- 56.8835.3
- Identification — Marked code
- 08213219
- Technical sheet: Power supply/frequency
- 230 V~; 50 Hz
- Technical sheet: Software version
- V02.11
- TSAmax marked
- 5 s
- Country of manufacture marked
- Made in Germany
- Inventory data — OMRON G5LE-1-V relay subcomponent
- 24 VDC coil; contacts 10 A 250 VAC~ and 5 A 250 V~
- Inventory data — Subcomponent relay OMRON G5LE-1-V-D
- 24 VDC coil; contact 10 A 250 VAC
- Inventory data — Lower relay subcomponents
- 5 A 250 V~
- Inventory data — Visible regulatory marking
- RoHS
- Inventory data — Application indicated in inventory
- ROCA NOVANOX PLATINUM 24/24F
- Inventory data — Marked code
- 1001280018; 08213219
- Aplicaciones pendientes de comprobar
- ROCA NOVANOX PLATINUM 24/24F — compatibilidad citada; pendiente de confirmar por variante.
Before purchasing
- The official Siemens technical sheet for the LMU34 series lists sensor faults: 10 (external sensor), 20 (boiler sensor), and 28 (combustion gases). The code displayed by your boiler may be different: please consult its manual.
- According to Siemens, flame loss causes a non-volatile lock in the LMU34.
- To be confirmed: Baxi Luna 3 HT Comfort: foro técnico (placa montada en esa caldera). le da otra placa: JJJ005691540
- No compatible o excluidos: Baxi Luna IN HT 240, Prime HT 240 y 280 — les da otra placa LMU34 (v2.09): JJJ005703660
- No compatible o excluidos: Baxi Prime HT 1.120 y Prime Storage HT — Otra les da la placa LMU34 JJJ005703660
- No compatible o excluidos: Chappée Luna 3 HTE — le da otro circuito LMU34: JJJ005691520
- No confundir: 125569154 — Placa de la Novanox Platinum 24/24F, y — En las páginas que hemos leído, ninguna la une a LMU34.210B349; compara las etiquetas
- No confundir: 125568605 — Equivalente de 125569154 «en algunos modelos», según — En las páginas que hemos leído, tampoco se une a LMU34.210B349
- Do not confuse: 125569583 — Electronic board of the Novanox 24/24 F (V.0) in the breakdown of a blog — That breakdown does not mention LMU34.210B349.
- No confundir: JJJ005703660 — Placa LMU34 versión 2.09 que para Baxi Luna IN HT 240 y Prime HT 240 y 280 — La nuestra es la LMU34.210B349 con software V02.11
- No confundir: JJJ005691540 — Placa LMU34 AVS77 que para la Baxi Luna 3 Comfort HT — Otro código; en las documentación, ninguna une este código con LMU34.210B349
- 125569154 como referencia Baxi Roca de la placa de la Novanox Platinum 24/24F y un despiece de blog da 125569583 para la tarjeta de la Novanox 24/24 F (V.0). En las páginas que hemos leído, ninguna las une a LMU34.210B349. Compara siempre LMU34.210B349 y 56.8835.3.
- To be confirmed: y un foro citan LMU34.210B349 y Siemens documenta la familia LMU34.210Bxxx (en los fragmentos leídos, sin el sufijo 349). En las páginas que hemos leído, ninguna une LMU34.210B349 con la Novanox: con la referencia 125569154. Esa caldera la confirma.
- Aplicaciones registradas pendientes de confirmar por modelo, variante o programación: Roca Novanox Platinum 24/24F.
Frequently asked questions: PCB 56.8835.3
How do I identify this PCB and what codes should I compare?
The designation Siemens LMU34.210B349 is marked on the plate. Compare it with the codes marked 56.8835.3, 08213219, and 1001280018, as well as with the circuit code CIB 100200. Also, mark 230 V~ 50 Hz and software V02.11.
Is it compatible with my Baxi Roca Novanox Platinum 24/24F?
La compatibilidad de esta variante está pendiente de confirmar. Aplicación registrada: esta placa para la Roca Novanox Platinum 24/24F. En las páginas que hemos leído, ninguna une LMU34.210B349 con esa caldera: con la referencia 125569154. (en su página en italiano) ofrece la LMU34.210B349 para «caldaia Baxi» y un foro técnico checo la sitúa en una Baxi Luna 3 HT Comfort.
What does LMU34.210B349 mean?
According to the official Siemens technical sheet, LMU34 is the series of boiler management units. LMU34.2 is the 230 V version (LMU34.3 is 120 V) and LMU34.210Bxxx is one of its model families. In the fragments we have read from that sheet, the suffix 349 does not appear. CIB 100200 is the PCB code.
Does any LMU34 PCB work?
La compatibilidad de esta variante está pendiente de confirmar. No. Siemens distingue modelos como LMU34.210Axxx, 210Bxxx, 215Bxxx, 216Bxxx o 220Bxxx. la LMU34 versión 2.09 (JJJ005703660) para Baxi Luna IN HT 240 y Prime HT 240 y 280, y otra da la JJJ005691540 para la Luna 3 Comfort HT. Compara la designación completa y el software.
¿Es la misma que la referencia 125569154 que venden algunas?
No podemos afirmarlo ., y dan 125569154 para la Novanox Platinum 24/24F, y añade 125568605 como equivalente en algunos modelos. En las páginas que hemos leído, ninguna las une a LMU34.210B349. Para tu Novanox Platinum 24/24F, sí confirma esta placa. ¿Dudas? Llámanos al 911 17 77 77.
What faults are related to this PCB?
Siemens records sensor faults (10, 20, and 28) and lockout due to flame loss in the LMU34 series. In a technical forum, with this PCB in a Baxi Luna 3 HT Comfort, there was no voltage reaching the pump or the coil of its relay on the board. The fault codes for your boiler may be different: check its manual.
What should be taken into account when installing it?
The PCB operates at 230 V in a gas boiler. Siemens advises to isolate the installation from the network, not to open or modify the unit, to mount it vertically inside a closed casing, and to avoid condensation.
Siemens LMU34.210B349 PCB · CIB 100200 for Baxi Roca Novanox Platinum 24/24F