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Biasi Diverter Valve Service Kit BI1491101

Biasi

Biasi Diverter Valve Service Kit BI1491101

Biasi diverter valve service kit BI1491101 for Activ, Advance and Inovia combi boilers from serial number 023480712.

At a glance

  • Part type: diverter valve service kit
  • Also known as SERVICE-KIT---INOVIAADV-PLUS, 1650082
Manufacturer part no.
BI1491101
GC number
J18-864
Showing prices

£80.30

£66.92 ex. VAT · VAT at 20%

Available to order · 3 working days
Available to order · 3 working days
Not certain it's the right part? The technical team verifies fitment before dispatch — no charge, and it stops a second trip.Call the technical teamSend a technical question

Same-day dispatch

Ordered by 4pm Mon–Fri, 10:30am Sat.

30-day returns

Unused, in original packaging.

What it is

The Biasi BI1491101 is a diverter valve service kit for Biasi combi boilers. It is used to overhaul the diverter valve assembly, restoring correct movement between central heating and domestic hot water modes. This version applies to appliances from serial number 023480712 onwards.

Signs this part needs replacing

  • No hot water or intermittent hot water while the heating is running
  • Domestic hot water temperature fluctuating between hot and cold at the tap
  • Heating circuit warming up when only hot water is drawn
  • Visible scale, debris or damage found on the diverter valve internals during service
  • Diverter valve diaphragm or moving parts no longer sealing or returning correctly

Before you order

  • Confirm the appliance serial number is 023480712 or later
  • Check the model name against the fit list above, including gas type where it applies
  • Inspect the existing diverter valve to confirm a service kit is the correct repair for the fault found

Not sure which part?

Search by part number, product name or brand — our technical team confirms fitment before anything is dispatched.

Biasi Diverter Valve Service Kit BI1491101