Wiesberg Hydraulic Group RSN 24 Ref. 95000036

When opening the hot water tap or starting the heating, the Wiesberg RSN 24 Hydraulic Group is responsible for directing and distributing water between the boiler circuits. If this part fails, you will notice leaks, loss of pressure, or problems in the production of hot water. This hydraulic group is compatible with boilers from the Unical and Wiesberg ranges, such as DUA C 24, DUA CTFS 24, DUA R 24, among others. A technician must confirm through diagnosis whether it needs to be replaced when symptoms of malfunction are present.

Type of part: Hydraulic units
Status: Refurbished
internal SKU: MTWRSN24
Warranty: 1 year

VAT included Stock · 7 units

Compatibility

Compatible Wiesberg boilers

Hydraulic group. Eight confirmed compatibilities: DUA C 24 and DUA CTFS 24.

Verified compatibility

Boiler model	Family	Verification
Wiesberg DUA C 24	Unical	Verified
Wiesberg DUA CTFS 24	Unical	Verified
Wiesberg DUA CTN 24	Unical	Verified
Wiesberg DUA R 24	Unical	Verified
Wiesberg RSN 24	Wiesberg	Verified
Wiesberg RSNE 24	Wiesberg	Verified
Wiesberg RSS 24	Wiesberg	Verified
Wiesberg RSSE 24	Wiesberg	Verified

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 it 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 —. If it is not visible, do not identify the part by 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 the hydraulic group

The hydraulic group includes the valve, the by-pass, and the water connections. These are the typical symptoms and what to do:

Common symptoms and faults

01
The thermometer needle does not move or stays at the same value, whether the boiler is cold or hot.
Cause: The bulb of the sensor has lost the expansion fluid or has been damaged and no longer transmits the actual temperature.
Touch the pipe where the bulb is installed when the boiler is heating; if the pipe is hot and the needle does not rise, the sensor is faulty.
02
The sensor cable is crushed, heavily bent, or has visible signs of damage.
Cause: A pinched or twisted wire can cut the internal capillary that carries the reading to the dial.
Check the cable route for tight bends or areas crushed by covers or bodywork before replacing the thermostat.
03
The dial is broken, scratched, or loose from its support, and the temperature cannot be read.
Cause: A blow to the front or a poor fit in the mounting space renders the sight unusable even though the sensor continues to measure correctly.
If the sensor responds to heat but the bulb is damaged, first check the fitting before assuming the entire part is broken.
04
The reading is delayed or does not reflect the actual temperature of the boiler.
Cause: If the bulb is not properly inserted into its sleeve, it measures more of the surrounding air than the actual water temperature.
Check that the bulb is fully inserted in its sleeve and securely held before replacing the thermometer.

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

Wiesberg hydraulic group data sheet

Uniclima internal SKU: MTWRSN24
Brand: Wiesberg
Type of part: Hydraulic units
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.

maximum temperature: 120 °C

Frequently asked questions

Frequently asked questions about the hydraulic group

Is this part a hydraulic group for my Wiesberg RSN 24?

No; according to the photos, it is a dial thermometer with cable and sensor (bulb), not a complete hydraulic group, although the catalog lists it in that category.

Is this dial thermometer suitable for the Unical DUA CTN 24?

Yes, it is on the list of compatible boilers in this document, along with the Wiesberg models.

What temperature range does the dial indicate for the Wiesberg RSSE 24?

From 0 to approximately 120 °C, according to the graduated dial.

When should the thermostat of the Wiesberg RSS 24 be replaced?

The technical diagnosis must confirm that it is necessary to replace it, even when the needle does not indicate temperature or the sensor does not provide a reading.

Delivery calculated by destination Delivery time shown at checkout

1-year warranty inspected and tested

14-day return uninstalled parts

Technical support we verify your model

Wiesberg Hydraulic Group RSN 24 Ref. 95000036