Biasi
Biasi Primary Circuit Pressure Switch BI1592115
Biasi BI1592115 primary circuit pressure switch for Basica COND and Rinnova Adaptive boilers.
At a glance
- Part type: primary circuit pressure switch
- Also known as 1651776
£68.82
£57.35 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 BI1592115 is a primary circuit pressure switch used on Biasi Basica COND and Rinnova Adaptive condensing boilers. It monitors pressure within the primary (heating) circuit and signals the control board when the circuit is at the correct operating pressure. The switch forms part of the boiler's safety and operating interlock chain.
Signs this part needs replacing
- Boiler locks out or fails to fire despite correct system pressure at the filling loop
- Low pressure or pressure-related fault code displayed on the boiler
- Heating and hot water cut out intermittently during operation
- Boiler runs only when the system pressure is manually raised above normal
- No response from the boiler when pressure is restored after a top-up
Before you order
- Confirm your boiler model against the fit list above before ordering
- Check the part number on the existing switch matches BI1592115
- Verify the appliance is a Basica COND M275V or Rinnova Adaptive M300V variant
- Check system pressure at the gauge and filling loop before assuming the switch is at fault
Compliance
| Alternative numbers | 1651776 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| BIASI BASICA COND M275V.2024 SM | 47-583-49 | 47-583-49 | — | — |
| BIASI BASICA COND M275V.2428 SM | 47-583-50 | 47-583-50 | — | — |
| BIASI BASICA COND M275V.28 SR | 41-583-40 | 41-583-40 | — | — |
| BIASI BASICA COND M275V.2832 SM | 47-583-51 | 47-583-51 | — | — |
| BIASI RINNOVA ADAPTIVE M300V.2025 SM | 47-583-46 | 47-583-46 | — | — |
| BIASI RINNOVA ADAPTIVE M300V.2530 SM | 47-583-47 | 47-583-47 | — | — |
| BIASI RINNOVA ADAPTIVE M300V.30 SR | 41-583-39 | 41-583-39 | — | — |
| BIASI RINNOVA ADAPTIVE M300V.3035 SM | 47-583-48 | 47-583-48 | — | — |
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 — BASICA COND M275V.2024 SM (GC 47-583-49), BASICA COND M275V.2428 SM (GC 47-583-50), BASICA COND M275V.2832 SM (GC 47-583-51)
manualmanualBIASI appliance manual — RINNOVA ADAPTIVE M300V.2025 SM (GC 47-583-46), RINNOVA ADAPTIVE M300V.2530 SM (GC 47-583-47), RINNOVA ADAPTIVE M300V.3035 SM (GC 47-583-48)
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