C.E.M.E. Pressure Sensor PC.5412/V - Cointra Supra Compact SPC 21 EI - Ref. 125568703

Pressure switch or pressure sensor C.E.M.E., model PC.5412/V. Setting range from 0.2 to 6 bar with fixed differential, NC contacts 15/250~ and NO 9/250~, maximum ambient temperature 120°C. It is installed in boilers Roca, Baxi, and Cointra from various series. Replacement requires first confirming the fault of the part through technical diagnosis, even when it stops switching the electrical circuit as the pressure varies.

Type of part: Pressure sensors
Status: Refurbished
Catalogue reference: 125568703
Warranty: 1 year

VAT included Stock · 3 units

Compatibility

Cointra boilers compatible with reference 125568703

Pressure sensor with reference 125568703. 12 verified compatibilities: VICTORIA 24/24 and VICTORIA 24/24 F.

Proven compatibility

Boiler model	Family	Verification
Cointra VICTORIA 24/24	VICTORIA	Contrasted
Cointra VICTORIA 24/24 F	VICTORIA	Contrasted
Cointra NEOBIT PLUS 24/24F	NEOBIT	Contrasted
Cointra NEOBIT S 24/24F	NEOBIT	Contrasted
Cointra BIOS 85 F	BIOS	Contrasted
Cointra BIOS 100 F	BIOS	Contrasted
Cointra NOVANOX 24/24F	NOVANOX	Contrasted
Cointra NOVANOX 28/28F	NOVANOX	Contrasted
Cointra NOVAMAX 31	NOVAMAX	Contrasted
Cointra NEODENS 24/24F	NEODENS	Contrasted
Cointra NEODENS 28/28F	NEODENS	Contrasted
Cointra ALTAIS 24/24F	ALTAIS	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 ref. 125568703 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 125568703. 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 the pressure switch 125568703

The pressure sensor measures the water pressure for the electronics. These are the typical symptoms and what to do:

Common symptoms and faults

01
The display shows a pressure fault warning even though the boiler's pressure gauge indicates the correct pressure.
Cause: The sensor converts the pressure into an electrical signal for the PCB; if the contact does not switch cleanly, the electronics continue to read incorrect pressure even though the water is fine.
Check the wiring and connector of the sensor (oxidation, loose terminal) before declaring it faulty: it is the most common cause of this phantom reading.
02
The boiler locks up as soon as it is turned on, without even attempting to start the burner.
Cause: With the fixed differential of this sensor, there is no margin: if the actual pressure is right at the lower limit of the range, it immediately cuts off the start.
Fill the circuit up to the recommended working pressure and check if the lockout disappears before replacing the part.
03
The pressure fault only appears when the boiler has been heating for a while, not when it's cold.
Cause: A sensor with a failure principle loses accuracy as it approaches the 120 °C it can withstand, and that is when the fault occurs.
Note if the fault occurs consistently at the same supply temperature; if so, focus more on the collector than on a leak.
04
The boiler works well for a few days and then it shows a pressure fault for no apparent reason.
Cause: A NC/NO contact with incipient wear switches intermittently before failing completely.
Keep track of when the fault occurs: if it becomes more frequent, it is a clear indication that the sensor is degrading.

Fault codes Cointra that require diagnosis

Code	Fault	Technical checks
E10	The hydraulic pressure switch does not confirm operation (lack of pressure in the heating circuit).	If the pressure sensor/pressure switch (125568703) does not detect the correct pressure and does not close, the PCB does not enable the boiler and E10 appears; check the actual pressure on the manometer (≈0.7–1.5 bar when cold) and the switching/wiring of the pressure switch (>~0.5 bar).
E164	Lack of switching/consensus of the hydraulic differential pressure switch.	In BIOS, the differential pressure sensor does not change state even though there is pressure/flow (damaged membrane/micro), so the electronics do not receive consensus; check pressure and continuity of the pressure switch during demand and replace if it does not switch with correct values.

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

Pressure sensor datasheet Cointra 125568703

Catalogue reference: 125568703
Uniclima internal SKU: PASCSPC21EI
Brand: Cointra
Type of part: Pressure sensors
Units in stock: 3 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.

Manufacturer: C.E.M.E.
Model: PC.5412/V
Pressure range: 0.2 to 6 bar
Differential: fixed
NC Contact: 15/250~
Contact NO: 9/250~
Maximum ambient temperature: 120°C
Manufacturing date: 24/05

Frequently Asked Questions

Frequently asked questions about the pressure sensor 125568703

Is this pressure switch C.E.M.E. PC.5412/V an original part from Roca or Baxi for the Cointra Supra Compact SPC 21 EI?

No. The manufacturer printed on the label is C.E.M.E.; it is the part that the boiler uses, without the Roca, Baxi, or Cointra brand.

What pressure range does this collector C.E.M.E. PC.5412/V operate in?

From 0.2 to 6 bar, with fixed differential, according to the label.

Is this pressure switch suitable for the Baxi Roca Altais 24/24F range?

Yes, it is one of the compatible models listed.

What fault does this sensor resolve in the Baxi Roca Bios boiler range?

It should be checked when it stops switching the electrical circuit as the pressure varies. Replacement requires a technical diagnosis.

What is the maximum ambient temperature that this C.E.M.E. collector mounted on the Baxi Roca Novamax range can withstand?

120°C, according to the data on the label.

What is the reference for this pressure sensor?

PASCSPC21EI is Uniclima’s internal SKU for locating this listing. To confirm compatibility, check the manufacturer’s reference and the exact appliance model.

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C.E.M.E. Pressure Sensor PC.5412/V - Cointra Supra Compact SPC 21 EI - Ref. 125568703