PCB Biasi Micon / Minox 24 E Ref. C320788
PCB for Biasi Micon 24E boilers and the Minox range (24A, 24E, 3 24E, 3 28E, 3 32E). On the PCB itself, only the code C321001 can be read on an integrated circuit, which does not match the reference C320788 published by the store today; it has not been confirmed that they are the same part. Check the reference of your unit before purchasing.
Spare parts related to Biasi Micon
Biasi boilers compatible with reference C320788
PCB with reference C320788. Compatibility confirmed by two independent sources: Micon 24 E. Verify the reference printed on your part before purchasing.
Compatibility confirmed
| Boiler model | Family | Verification |
|---|---|---|
| Biasi Micon 24 E | Micon | Confirmed · 2 sources |
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. C320788 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.
- Locate the reference printed on the body of the PCB you have installed: it should indicate C320788.
- Check your boiler model on the nameplate and look for it in the list of compatible models on this page.
- Compare the connections and the body with the original part before installing.
- If you have any doubts, send us a photo of the screen printing via WhatsApp and we'll confirm it for you before you purchase.
Symptoms and faults resolved by PCB C320788
The PCB controls the ignition, modulation, and safety features of the boiler. These are the typical symptoms and what to do:
The boiler does not respond to anything: no indicators, no display, it doesn't start for either heating or domestic hot water.
Cause: It is the most common fault of a dead PCB: the power stage does not distribute voltage to the rest of the circuit.
Before replacing the PCB, check with a multimeter that 230V are reaching the input and inspect the fuse on the PCB itself.
The burner tries to ignite, you can hear the spark, but the boiler locks out immediately and needs to be reset.
Cause: The microprocessor on the PCB does not receive or correctly interpret the flame signal and shuts down for safety.
Write down the exact fault code displayed on the screen before ruling out the PCB; it might point to the flame sensor, not the electronics.
The wall control or thermostat is not able to start the boiler, even though it has batteries and appears to be on.
Cause: The communication stage between the PCB and the thermostat has stopped responding.
Try bypassing the demand directly at the PCB terminals; if it starts this way, the problem is with the thermostat, not the PCB.
The boiler runs for a while and then stops on its own, without a fixed pattern, and sometimes starts up again by itself.
Cause: A power component of the PCB (relay or triac) degrades with heat and fails intermittently.
Check that fans and pumps rotate freely and do not strain the PCB due to friction before considering it faulty.
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.
Biasi PCB C320788 datasheet
- OEM reference
- C320788
- Brand
- Biasi
- Type of part
- PCBs (control boards)
- Units in stock
- 5 units
- Status
- Refurbished
- Warranty
- 1 year
- Shipping
- 1-2 business days
- 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.
- Integrated circuit code
- C321001
label - Transformer code
- TS06 / 929
label
- On the photographed board, only the code C321001 is visible on an integrated circuit; the reference C320788 published by the store today does not appear. It has not been confirmed that both codes correspond to the same part.
- The manufacturer of the component is not listed on the label and could not be determined.
- There is a text in gold seal on the track side that could not be reliably transcribed; it is not used as data.
- Arbitration of this record marked as UNRESOLVED, with LOW confidence: the reference contradiction remains open.
- Without external sources confirming manufacturer, reference, or equivalences.