
3-Way Valve Actuator Garda/Parva/Riva (Advance/Compact) Ref. BI1101102
If you notice that you have hot water but no heating, or vice versa, you may need a 3-way valve actuator Garda/Parva/Riva (Advance/Compact). This part is responsible for directing water between the heating circuit and the domestic hot water circuit. When it fails, it can cause both circuits to mix or one not to function properly. It is compatible with boilers from the Micon range, such as the Micon 24E model, and Minox, among others. It is advisable to replace it when you observe these symptoms of malfunction.
VAT included
Consult via WhatsAppBiasi boilers compatible with reference BI1101102
3-way valve with reference BI1101102. Two confirmed compatibilities: Micon 24E and Minox 24 E.
Proven compatibility
| Boiler model | Family | Verification |
|---|---|---|
| Biasi Micon 24E | Micon | Contrasted |
| Biasi Minox 24 E | Minox | 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. BI1101102 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 BI1101102. 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 BI1101102 three-way valve resolves.
The 3-way valve diverts water between heating and domestic hot water. These are the typical symptoms and what to do:
Common symptoms and faults
- 01
The hot water comes out lukewarm or mixed, as if something from the heating circuit is entering.
Cause: The actuator does not fully close the flow to the heating system, resulting in an internal leak between the two circuits.
With the boiler in domestic hot water mode, touch the supply pipe to the radiators; if it is hot as well, that side is not closing properly.
- 02
The actuator buzzes but does not move, or it moves much slower than before.
Cause: The motor is losing power or the reduction gear is worn out and is unable to move the rod with the necessary torque.
Remove the actuator from the valve without disassembling the valve and check if it turns freely when powered outside the boiler.
- 03
The boiler remains fixed in one mode and does not change even when the other service is requested.
Cause: The actuator has stopped in one position and does not execute the switching command from the control unit.
Check if the actuator receives power when requesting the mode change; if it does receive power and does not turn, the fault is mechanical and not electrical.
- 04
A dry knock is noticeable in the gas valve when starting or stopping the boiler.
Cause: The return spring or stop of the actuator is broken and the rod falls abruptly instead of moving guided.
Check if the knock occurs at the same point in the cycle; it indicates that the movement is not completing smoothly.
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.
Data sheet for the 3-way valve Biasi BI1101102
- Catalogue reference
- BI1101102
- Brand
- Biasi
- Type of part
- 3-way valves
- Units in stock
- 5 units
- Status
- Refurbished
- Warranty
- 1 year
- Shipping
- 1-2 business days
- Return
- 14 days









