Filling Key Hermann Saunier Duval Micraplus Condens 25 A Ref. 0020212572

Hermann boilers compatible with reference 0020212572

Filling key with reference 0020212572. Eight verified compatibilities: Micraplus Condens 25-A and Micraplus Condens 30-A.

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 the ref. 0020212572 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 0020212572. 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 filling valve 0020212572 resolves.

The filling valve allows water to refill the heating circuit. These are the typical symptoms and what to do:

Common symptoms and faults

• 01

  A persistent limescale or moisture stain appears around the tap.

  Cause: Indicate a small and continuous drip that goes unnoticed until limescale accumulates.

  Dry the area well and check it again several hours later to see if the moisture reappears.

• 02

  The pressure of the boiler is gradually decreasing and it needs to be topped up frequently.

  Cause: The valve does not close properly and allows water to slowly leak into the circuit.

  Close the valve completely and monitor the pressure gauge for several hours to check if the pressure stabilizes.

• 03

  When opening the valve to refill, it is difficult for the pressure on the manometer to rise.

  Cause: The internal mechanism is jammed due to limescale or accumulated dirt, restricting the flow of water.

  Open and close several times in a row and see if you notice resistance when turning or if the flow is low.

• 04

  When closing the tap, a small whistle or water flow can still be heard.

  Cause: The closure does not fully stop due to wear of the internal mechanism.

  Turn it until the end of the closing stroke and listen for the sound of water to completely disappear.

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 filling key Hermann 0020212572

Catalogue reference

0020212572

Brand

Hermann

Type of part

Filling valves

Units in stock

2 units

Status

Refurbished

Warranty

1 year

Shipping

Delivery time shown at checkout

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.

Body material

Plastic, black

Plug

Blue, with a tool icon engraved (wrench and screwdriver), without text.