Saunier Duval PCB SDHV19 2

Compatible Saunier Duval boilers

PCB. Six confirmed compatibilities: SDHV10 and SDHV14.

Verified 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 it 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 —. If it is not visible, do not identify the part by 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 that require diagnosis on the PCB

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 there is no sound from the relays when requesting heat.

  Cause: The relays on the PCB close the circuit to the fan, the pump, and the ignition electrode; if they do not work, nothing starts.

  Listen closely to the PCB when calling for heat: if you don't hear any relay click, it's a clear indication before replacing it.

• 02

  The relays can be heard working, but the fan or the pump do not start moving.

  Cause: A relay can get stuck or have burnt contacts and continue making noise without passing current to the component.

  Measure the voltage at the output of the relay involved while the PCB activates it, to confirm if current is actually reaching.

• 03

  The boiler locks out with a different fault code every few days, without a clear pattern.

  Cause: When the problem is with the PCB (control board) itself (solder joints, aged components), the faults tend to be erratic, unlike a specific fault that always repeats the same fault code.

  Keep track of the codes that appear: if they change without any apparent reason, it is an indication that points more towards the PCB than to a specific component.

• 04

  You smell something burnt near the control panel or see a dark mark on the PCB.

  Cause: An overheated component on the PCB, often a relay, usually leaves a visible mark and smell before it completely stops functioning.

  With the boiler unplugged, inspect the PCB with a flashlight looking for darkened or swollen areas 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.

Saunier Duval PCB data sheet

Uniclima internal SKU

MEPBCSDHV19

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.

Visible marking on the relays

AXICOM