Expansion Vessel For Talia 25 Boiler - Ref. 65104261

Chaffoteaux boilers compatible with reference 65104261

Expansion vessel with reference 65104261. 27 verified compatibilities: Pigma Green 25 EU and Pigma Green 25 FF NG.

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. 65104261 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 65104261. 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 expansion vessel 65104261 resolves.

The expansion vessel absorbs the expansion of water when heated. These are the typical symptoms and what to do:

Common symptoms and faults

• 01

  The pressure on the manometer drops by itself, even though there are no visible leaks.

  Cause: A vessel without air pressure cannot absorb the expansion, and the circuit gradually becomes unbalanced.

  Before changing the expansion vessel, bleed the radiators and check the automatic air vent of the boiler; sometimes the problem is trapped air.

• 02

  The safety valve drips water when the boiler is cold, without prior intervention.

  Cause: If the tank is full of water due to a membrane rupture, there is no margin for the next heating cycle and the system lacks a cushion from the start.

  Check if the dripping is occasional or continuous; a constant stream indicates a clearer problem with the expansion vessel.

• 03

  The expansion vessel has an unusual weight and does not feel like it has air when moved.

  Cause: When water enters the air chamber due to a rupture of the membrane, the vessel stops functioning as a shock absorber and becomes a rigid tank.

  Disconnect the expansion vessel from the circuit if you can and manually check if it contains air or is filled with water.

• 04

  The heating works, but the pressure fluctuates more than normal during each on and off cycle.

  Cause: Without the elasticity of the air mattress in the vessel, each start and stop of the burner directly affects the pressure gauge.

  Observe the pressure gauge during a complete heating and cooling cycle; if it fluctuates more than before, the expansion vessel may be the problem.

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 Chaffoteaux expansion vessel 65104261

Catalogue reference

65104261

Brand

Chaffoteaux

Type of part

Expansion vessels

Units in stock

1 unit

Status

Refurbished

Warranty

1 year

Shipping

1-2 business days

Return

14 days