Micra Condensing 26 Boiler Plate Heat Exchanger Ref. 020004861

If you notice that the hot water comes out lukewarm or with fluctuating temperature, a technical diagnosis must confirm if you need the heat exchanger for the Micra Condensing 26 boiler Ref. 020004861. This part, manufactured by Hermann, is responsible for transferring heat from the primary circuit to the domestic hot water instantly. It is installed in boilers such as the Micra Condensing 26, among others like the TOP 26 CONDENSING, COND 26, and CONDENS 26. A technician must confirm through diagnosis if it is necessary to replace it when there are temperature or flow issues with the hot water.

Type of part: Combustion chambers
Status: Refurbished
Catalogue reference: 020004861
Warranty: 1 year

VAT includedStock · 7 units

Compatibility

Hermann boilers compatible with reference 020004861

Combustion chambers with reference 020004861. Four verified compatibilities: TOP 26 CONDENSING and COND 26.

Proven compatibility

Boiler model	Family	Verification
Hermann TOP 26 CONDENSING	EURA	Contrasted
Hermann COND 26	MASTER	Contrasted
Hermann CONDENSING 26	MICRA	Contrasted
Hermann CONDENS 26	THESI	Contrasted

Can't see your model or have questions? The printed reference takes precedence. How to check it · Send us a photo via WhatsApp.

Guide

How to check if the reference 020004861 is the part for your boiler

The part reference, model, and equipment revision must be verified against the manufacturer's documentation.

Find the reference printed on the installed part and check whether it matches the catalogue reference 020004861. If it is not visible, do not identify the part from its shape alone.
Check the full boiler model on its data plate and look for it in the model associations on this page.
Compare the connections and physical body with the original part before installation.
If anything is unclear, send us a photo of the marking via WhatsApp before placing your order.

Diagnosis and fault codes

Symptoms that require diagnosis in combustion chambers 020004861

Common symptoms and faults

01
The water comes out lukewarm or the temperature fluctuates on its own while you shower.
Cause: The heat exchanger plates are clogged with scale, and the flow does not always receive the same heat.
Open the tap to a lower flow; if the temperature stabilizes with less water, the problem is in the heat exchanger.
02
The boiler suddenly loses temperature as soon as another tap is opened at the same time.
Cause: A heat exchanger that performs less due to scale does not have enough power when the flow is distributed between two points.
Check if the problem occurs only with two simultaneous demands or also with just one; if it only happens with multiple at the same time, it does not point solely to the heat exchanger.
03
Water is leaking from the bottom of the boiler, near the body of the heat exchanger.
Cause: The joints or the welding between plates give way with the cycles of pressure and temperature.
Dry the area, turn on the boiler, and check if the dripping occurs when requesting domestic hot water; this way you can differentiate it from a nearby fitting.
04
The pressure in the circuit drops without any visible leaks outside.
Cause: An internal micro-leak in the heat exchanger can allow water to filter from one circuit to another without leaking to the outside.
Fill up to the correct pressure, close the drain valves, and monitor the manometer for a couple of days without using the boiler.

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 data

Technical sheet: Hermann combustion chambers 020004861

Catalogue reference: 020004861
Uniclima internal SKU: ICCMC26
Brand: Hermann
Type of part: Combustion chambers
Units in stock: 7 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.

material: RVS
length: 1.0
diameter: 12
pressure: 12
temperature: 12
flow rate: 12
capacity: 12
type: DAN. 1.0
class: A 12

Frequently Asked Questions

Frequently asked questions: combustion chambers 020004861

Is this heat exchanger suitable for both the Eura Top 26 Condensing and the Thesi Condens 26?

Yes, it is confirmed to be compatible with both models, as well as with the Master Cond 26 and the Micra Condensing 26.

What is the function of this heat exchanger in the Master Cond 26?

Transfer heat from the primary circuit to the domestic hot water or heating; the material does not record a specific fault associated with its replacement.

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Entrega calculada por destinoDelivery time shown at checkout

1-year warrantyreviewed and tested

14-day returnuninstalled parts

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Micra Condensing 26 Boiler Plate Heat Exchanger Ref. 020004861