Biasi
Biasi Printed Circuit Board Auxiliary BI2035120
Biasi auxiliary printed circuit board, part BI2035120, for Activ A Plus and Inovia boiler models.
At a glance
- Part type: auxiliary printed circuit board
- Also known as AUXILARY-PCB-ACTIVA--INOVIA, 1651942
£98.15
£81.79 ex. VAT · VAT at 20%
Same-day dispatch
Ordered by 4pm Mon–Fri, 10:30am Sat.
30-day returns
Unused, in original packaging.
What it is
The Biasi BI2035120 is an auxiliary printed circuit board used in Biasi domestic gas boilers. It forms part of the appliance's electronic control assembly, handling the switching and monitoring duties that sit alongside the main board. The board is supplied by Biasi as a direct replacement for the original item fitted to the Activ A Plus and Inovia ranges.
Signs this part needs replacing
- The boiler powers up but does not respond to demand from the room thermostat or programmer.
- Fault codes relating to the control or auxiliary board appear on the display.
- The fan, pump or ignition sequence fails to start even though the main board is functioning.
- Intermittent lockouts that clear on reset and return shortly afterwards.
- Visible heat damage, scorching or track failure on the board itself.
Before you order
- Check the GC number on the appliance data badge against the compatibility list; Biasi used this board across several Activ A Plus variants.
- Confirm the model and, where relevant, the serial number before ordering, as control layouts changed between production runs.
- The alternative number 1651942 may be printed on the board or its packaging.
Mechanical
| Part type | Auxiliary printed circuit board |
|---|
Compliance
| Manufacturer part number (MPN) | BI2035120 |
|---|---|
| GC number | H94-592 |
| GPC classification | Electronic Circuit Accessories |
| Alternative numbers | AUXILARY-PCB-ACTIVA--INOVIA, 1651942 |
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| BIASI ACTIV A PLUS 16S | 41-583-20 | 41-583-20 | — | — |
| BIASI ACTIV A PLUS 16S | — | — | — | |
| BIASI ACTIV A PLUS 16S LPG | 41-583-20 | 41-583-20 | — | — |
| BIASI ACTIV A PLUS 25C | 47-583-28 | 47-583-28 | — | — |
| BIASI ACTIV A PLUS 25C | — | — | — | |
| BIASI ACTIV A PLUS 25C LPG | 47-583-28 | 47-583-28 | — | — |
| BIASI ACTIV A PLUS 25S | — | — | — | |
| BIASI ACTIV A PLUS 25S | 41-583-21 | 41-583-21 | — | — |
| BIASI ACTIV A PLUS 25S LPG | 41-583-21 | 41-583-21 | — | — |
| BIASI ACTIV A PLUS 30C | — | — | — |
Showing 10 of 37 compatible appliances.
Documents & drawings
Everything we hold for this part. Where a document exists but we don't hold it, the technical team will source it from the manufacturer — usually the same working day.
BIASI appliance manual — ACTIV A PLUS 16S (GC 41-583-20), ACTIV A PLUS 16S LPG (GC 41-583-20), ACTIV A PLUS 25S (GC 41-583-21), ACTIV A PLUS 25S LPG (GC 41-583-21)
manualmanualBIASI appliance manual — ACTIV A PLUS 25C (GC 47-583-28), ACTIV A PLUS 25C LPG (GC 47-583-28), ACTIV A PLUS 30C (GC 47-583-26), ACTIV A PLUS 30C LPG (GC 47-583-26), ACTIV A PLUS 35C (GC 47-583-27), ACTIV A PLUS 35C LPG (GC 47-583-27)
manualmanualBIASI appliance manual — INOVIA 16S (GC 41-583-25), INOVIA 16S LPG (GC 41-583-25), INOVIA 25S (GC 41-583-26), INOVIA 25S LPG (GC 41-583-26)
manualmanualBIASI appliance manual — INOVIA 25C (GC 47-583-32), INOVIA 25C LPG (GC 47-583-32), INOVIA 30C (GC 47-583-33), INOVIA 30C LPG (GC 47-583-33), INOVIA 35C (GC 47-583-34), INOVIA 35C LPG (GC 47-583-34)
manualmanualBIASI appliance manual — INOVIA 25C ERP (GC 47-583-38), INOVIA 25C ERP LPG (GC 47-583-38), INOVIA 30C ERP (GC 47-583-39), INOVIA 30C ERP LPG (GC 47-583-39), INOVIA 35C ERP (GC 47-583-40), INOVIA 35C ERP LPG (GC 47-583-40)
manualmanualBIASI appliance manual — INOVIA 25S ERP (GC 41-583-30), INOVIA 25S ERP LPG (GC 41-583-30)
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