Water Pressure Switch Beretta Mynute Green 28 C S I Ref. 20166541
RefurbishedBerettaPressure switches

Water Pressure Switch Beretta Mynute Green 28 C S I Ref. 20166541

Stock · 3 units

Pressure switch for Beretta boilers from the Mynute, Ciao, Boiler, Amica, and Arte ranges, among other models with CSI or BAI output. A pressure switch is a device that operates based on the pressure it detects and enables or cuts off the operation of the boiler. The label reads 'E-08/44' and '10028141', but it appears to be a manufacturing batch marking, not a commercial reference or the manufacturer's name.

VAT included

Compatibility

Beretta boilers compatible with reference 20166541

Pressure switch with reference 20166541. 13 confirmed compatibilities: Mynute Green 25 CSI and Mynute Green CSI.

Proven compatibility

Boiler modelFamilyVerification
Beretta Mynute Green 25 CSIMynute GreenContrasted
Beretta Mynute Green CSIMynute GreenContrasted
Beretta Mynute Green RSIMynute GreenContrasted
Beretta Mynute NMynuteContrasted
Beretta Mynute S 24 CAI EMynuteContrasted
Beretta Mynute S 28 CSIMynuteContrasted
Beretta Mynute Sinthesi 25 CSIMynuteContrasted
Beretta Ciao NHelloContrasted
Beretta Ciao 24 CSIHelloContrasted
Beretta Ciao 28 CSI NHelloContrasted
Beretta Ciao Green 25 CSIHelloContrasted
Beretta JuniorJuniorContrasted
Beretta KompaktaKompaktaContrasted

Can't see your model or have questions? The printed reference takes precedence. How to check it ·

Guide

How to check if the reference 20166541 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 20166541. 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.
Diagnosis and fault codes

Symptoms and faults that the pressure switch 20166541 resolves.

The pressure switch controls the air or water pressure to authorize operation. These are the typical symptoms and what to do:

Common symptoms and faults

  • 01

    The boiler tries to ignite a couple of times and stops, showing a fault, without providing heat.

    Cause: The pressure switch allows the control board to open the gas; if it does not send the signal, the cycle is interrupted before reaching the flame.

    Before replacing it, check that the fan (if the boiler has one) spins freely and does not make any strange noises.

  • 02

    It has been experiencing sporadic faults that resolve themselves after a reset, and now it has become quite frequent.

    Cause: A pressure switch that starts to fail intermittently usually degrades until it becomes stuck in the off position.

    Note how many times a day the fault occurs, as it helps to determine if it is getting worse.

  • 03

    The fault occurs on days with strong winds or when the boiler is very cold at startup.

    Cause: At the limit of its setpoint range, the pressure switch may switch properly under certain conditions and not under others.

    Compare whether the fault occurs only when cold or also when the boiler is already hot, as this helps narrow down the cause.

  • 04

    Upon opening the boiler, the pressure switch connection tube is seen to be loose or with condensate residue inside.

    Cause: If the pressure switch does not receive the actual pressure from the duct due to a leak or restriction, it acts as if there is a fault even though the component is healthy.

    Check and clean those pipes before attributing the fault to the spare part.

Fault codes for Beretta that this part resolves.

CodeFaultDiagnosis and solution
A04Water pressure switch alarmThe water pressure switch (20166541) does not close due to insufficient circuit pressure or a faulty/defective connection; the PCB detects absence of signal and locks in A04. Verify by increasing the pressure to ~1.0–1.5 bar and checking continuity and wiring of the pressure switch.

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

Data sheet for the Beretta pressure switch 20166541

Catalogue reference
20166541
Brand
Beretta
Type of part
Pressure switches
Units in stock
3 units
Status
Refurbished
Warranty
1 year
Shipping
Delivery time shown at checkout
Return
14 days
Frequently Asked Questions

Frequently asked questions about the pressure switch 20166541

Is this pressure switch suitable for a Beretta Ciao 24 CSI?
Yes, it is on the list of compatible boilers, including models from the 'Ciao' range.
Is the reference 20166541 the code that is engraved on the pressure switch?
No; the number visible on the label (’E-08/44’ and ’10028141’) seems to be a manufacturing batch number, different from that catalog reference.
Is this pressure switch suitable for boilers with BAI output?
Yes, the part is compatible with CSI and BAI output models, as long as they belong to the confirmed ranges and models.
How many models are compatible with this pressure switch?
The water pressure switch Beretta Mynute Green 28 C S I (Ref. 20166541) is compatible with a total of 13 models.
What reference should I look for this pressure switch?
The reference you need to look for is PRCBTT28.
What fault code is documented for this product?
The documented fault code for this pressure switch is A04.

Spare parts related to Beretta Mynute

Entrega calculada por destinoDelivery time shown at checkout
1-year warrantyreviewed and tested
14-day returnuninstalled parts
Technical supportwe verify your model
Water Pressure Switch Beretta Mynute Green 28 C S I Ref. 20166541