Water Pressure Sensor Sime Murelle EV Ref. 6273612
Measure the water circuit pressure and send the reading to the boiler's PCB. If it fails, it can cause incorrect readings and lockouts due to false low pressure, which could manifest as fault codes ALL 02 and ALL 03. This water pressure sensor is compatible with Sime Murelle boilers, including models such as Murelle EV, Murelle HE, and Murelle EV 30 BF, among others. It is recommended to replace it when you notice pressure issues or errors in the system.
VAT included
Consult via WhatsAppSime boilers compatible with reference 6273612
Pressure sensor with reference 6273612. Four confirmed compatibilities: Murelle EV and Murelle HE.
Proven compatibility
| Boiler model | Family | Verification |
|---|---|---|
| Sime Murelle EV | Murelle | Contrasted |
| Sime Murelle HE | Murelle | Contrasted |
| Sime Murelle EV 30 BF | Murelle | Contrasted |
| Sime Brava Slim | Brava Slim | Contrasted |
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. 6273612 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.
- Find the reference printed on the installed part and check whether it matches the catalogue reference 6273612. 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.
Symptoms and faults that the pressure switch 6273612 resolves.
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 boiler stops and displays a low water pressure warning even though the pressure gauge shows a normal level.
Cause: The sensor sends an incorrect signal to the control board, which interprets that there is not enough pressure even though the circuit is properly filled.
First, measure the actual pressure on the manometer or on the boiler display before considering the reading from the sensor to be correct.
- 02
The pressure reading on the display rises and falls without reason, without having bled or added water.
Cause: A collector with a deteriorated membrane or internal circuit generates an unstable signal that the control unit translates into reading jumps.
Note if the fluctuations coincide with the start of the pump or the burner; if so, first check the electrical installation and the connections of the sensor.
- 03
The boiler won't start and remains locked in a pressure fault even though the circuit has just been refilled.
Cause: If the sensor does not send any signal, or sends it out of range, the control unit does not allow the ignition cycle to proceed for safety reasons.
Check that the sensor connector is properly seated and free of moisture or oxidation before replacing the part.
- 04
The water pressure fault code appears and disappears on its own, without any clear pattern.
Cause: It is typical of a collector with an aged sensor or damaged wiring to give intermittent readings.
Check the condition of the cable and its routing, looking for points of abrasion or pinching, before replacing the sensor.
Fault codes for Sime that this part resolves.
| Code | Fault | Diagnosis and solution |
|---|---|---|
| ALL 02 | Low water pressure detected by the transducer (<0.5 bar). | If the pressure sensor/transducer sends an incorrect signal (e.g., drop to 0 V, drift, or short circuit), the PCB interprets pressure <0.5 bar and triggers ALL 02; verify by comparing the reading on the display/diagnosis with an external manometer and measuring the power supply ~5 VDC and TPA signal (~0.5–4.5 V). |
| ALL 03 | High water pressure detected by the transducer (>2.8 bar; in some models 4.8 bar). | A miscalibrated/faulty pressure sensor can report excessive pressure and trigger ALL 03 even if the circuit is at 1–1.5 bar; check with an external manometer and compare with the value shown by the boiler or the diagnostic menu, in addition to measuring the TPA signal and its 5 VDC supply. |
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.
Pressure Sensor Datasheet Sime 6273612
- Catalogue reference
- 6273612
- Brand
- Sime
- Type of part
- Pressure sensors
- Units in stock
- 5 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.
- Mold/Batch code
- 37840003
- Manufacturing date
- 15/03/12
Frequently asked questions about the pressure sensor 6273612
Is this water pressure sensor compatible with my Sime Murelle boiler?
How many models are compatible with this sensor?
What fault codes are documented for this sensor?
Does the reference SDPCSI-EV correspond to this sensor?
Is this sensor suitable for the Brava Slim range?
What does the code 37840003 on the sensor label mean?
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