Biasi
Biasi Pump Capacitor BI2045107
Pump capacitor for Biasi Activ A series gas boilers, used to start and run the circulating pump motor.
At a glance
- Also known as PUMP-CAPACITOR-ACTIVA, 1651317
£21.59
£17.99 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 BI2045107 is a pump capacitor for Biasi Activ A series gas boilers. It supplies the starting and running capacitance needed by the boiler's circulating pump motor. Without it, the pump will not start or run correctly, affecting heating and hot water circulation.
Signs this part needs replacing
- Pump motor hums but does not start
- Pump fails to run, causing the boiler to overheat or lock out
- Pump runs intermittently or only after a power cycle
- No circulation, with radiators failing to heat
- Pump motor overheating
Before you order
- Confirm your boiler model and GC number against the fitment list above.
- Check the capacitance and voltage rating marked on the existing capacitor against the replacement.
- Isolate the boiler from the electrical supply before removing or fitting the capacitor.
- If the pump has seized or its windings are faulty, a capacitor alone will not restore operation.
Compliance
| GC number | H82-078 |
|---|---|
| Barcode / EAN | 8023585846636 |
| Alternative numbers | PUMP-CAPACITOR-ACTIVA, 1651317 |
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| BIASI ACTIV A 18S | 41-583-11 | 41-583-11 | — | — |
| BIASI ACTIV A 18S | — | — | — | |
| BIASI ACTIV A 18S LPG | 41-583-11 | 41-583-11 | — | — |
| BIASI ACTIV A 25C | — | — | — | |
| BIASI ACTIV A 25C | 47-583-21 | 47-583-21 | — | — |
| BIASI ACTIV A 25C LPG | 47-583-21 | 47-583-21 | — | — |
| BIASI ACTIV A 25S | — | — | — | |
| BIASI ACTIV A 25S | 41-583-12 | 41-583-12 | — | — |
| BIASI ACTIV A 25S LPG | 41-583-12 | 41-583-12 | — | — |
| BIASI ACTIV A 30C | 47-583-22 | 47-583-22 | — | — |
Showing 10 of 18 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 18S (GC 41-583-11), ACTIV A 18S LPG (GC 41-583-11), ACTIV A 25S (GC 41-583-12), ACTIV A 25S LPG (GC 41-583-12), ACTIV A 30S (GC 41-583-13), ACTIV A 30S LPG (GC 41-583-13)
manualmanualBIASI appliance manual — ACTIV A 25C (GC 47-583-21), ACTIV A 25C LPG (GC 47-583-21), ACTIV A 30C (GC 47-583-22), ACTIV A 30C LPG (GC 47-583-22), ACTIV A 35C (GC 47-583-23), ACTIV A 35C LPG (GC 47-583-23)
manualNo technical questions yet for this part.
Not sure which part?
Search by part number, product name or brand — our technical team confirms fitment before anything is dispatched.