Honeywell PCB Saunier Duval Sylva FF 24 E Ref. 43605078-001

Saunier Duval boilers compatible with reference 05625400

PCB with reference 05625400. Two confirmed compatibilities: Sylva FF 24 and Sylva FF 24 E.

Proven compatibility

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. 05625400 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.

1. Find the reference printed on the installed part and check whether it matches the catalogue reference 05625400. 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.

Symptoms and faults that the PCB 05625400 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 and does not even attempt to start the fan.

  Cause: The PCB is not sending a start signal to the ignition components.

  Check that the boiler is receiving stable electrical power and that the circuit breaker has not tripped before replacing the PCB.

• 02

  The display shows a different fault code each time it is reset.

  Cause: The PCB has an internal fault that causes it to lose the correct reading from its own sensors.

  Note each code that appears and compare it with the Sylva manual before concluding that it is the PCB.

• 03

  The boiler ignites properly but does not respond to the temperature changes requested from the control.

  Cause: The demand management stage of the PCB does not correctly transfer the thermostat order to the burner.

  Check that the remote control or programmer thermostat is working properly by bridging its demand directly on the PCB.

• 04

  After a power outage or a voltage surge, the boiler stopped working suddenly.

  Cause: An electrical surge can damage components of the PCB that were previously functioning normally.

  Check that there are no other appliances in the house affected by the same power cut, to rule out an issue with the electrical installation.

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 05625400 PCB.

Catalogue reference

05625400

Brand

Saunier Duval

Type of part

PCBs (control boards)

Units in stock

1 unit

Status

Refurbished

Warranty

1 year

Shipping

1-2 business days

Return

14 days

Data read on the part and in the manufacturer's documentation

What we have not been able to verify does not appear here.

Manufacturer (according to label)

Honeywell

PCB code

43605078-001

Review

REV 0410

Manuals and technical documentation

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

• Saunier Duval Sylva FF 24 E Manual (PDF)Document © Saunier Duval, provided as a technical reference.