Payment methods
Biasi Riva 24S 24SR & 28S 3 Way Diverter & Valve Actuator Nut Bush BI1011504
IN STOCK
FROM £9.78
Biasi Riva 24S 24SR 28S Boiler 3 Way Diverter Valve Actuator Nut Bush BI1011504
Product Overview
The Biasi Riva 3 Way Diverter Valve Actuator Nut Bush (Part Number: BI1011504) is a replacement component associated with the diverter valve mechanism in selected Biasi heating systems.
Part number BI1011504 is also listed by specialist boiler-spares suppliers as a Diverter Valve Actuator Repair Kit.
The diverter valve mechanism directs heated water between the central heating and domestic hot water circuits according to the boiler's operating demand.
The actuator nut bush is associated with the mechanical operation of this assembly and should not be confused with the complete diverter valve or its motorised actuator.
ℹ️ Product Condition Options:
This part may be available in New or Refurbished condition. Please select your desired option from the dropdown menu above. Refurbished parts should be professionally inspected and tested to confirm correct operation before installation.
Technical Insight & Common Failure Symptoms
The diverter valve mechanism controls the direction of heated water within the boiler, allowing the appliance to respond to central heating and domestic hot water requirements.
Mechanical wear, deterioration or damage affecting the actuator mechanism may interfere with the correct movement of the diverter valve.
Possible symptoms that may indicate a diverter valve actuator or associated component problem include:
-
Diverter valve failing to change position correctly.
-
Central heating operating but domestic hot water not heating correctly.
-
Domestic hot water working while central heating fails to operate correctly.
-
Intermittent heating or hot water operation.
-
Mechanical wear or damage to the actuator mechanism.
-
Difficulty switching between heating and hot water functions.
-
Loose or damaged mechanical connections within the valve assembly.
These symptoms do not necessarily confirm a faulty actuator nut bush, as similar problems may result from the diverter valve actuator, internal valve components, electrical controls or other hydraulic components. Correct professional diagnosis should be carried out before replacement.
Compatibility
This part (MPN: BI1011504) is associated with selected Biasi Riva 24S, 24SR and 28S boiler systems.
Please verify the original part number, boiler model and mechanical specifications against the manufacturer's technical documentation before ordering to ensure correct fitment.
Safety Advice
Boiler diverter valve components and associated hydraulic mechanisms should only be diagnosed, removed or installed by a suitably qualified and competent heating engineer.
Always isolate the appliance and allow the heating system to cool before carrying out any work. Where replacement involves opening the hydraulic circuit, the system must be safely isolated and depressurised. Follow the manufacturer's servicing instructions and complete all required leakage, pressure and operational safety checks before returning the boiler to service.
This part fits the following boilers:
Fits Appliance(s)
GC No.
Biasi Prisma 24S *200
47-970-06
Biasi Prisma 24SE *1998*
47-970-04
Biasi Prisma 28S *200
47-970-07
Biasi Prisma 28SE *1998*
47-970-05
Biasi Savio GAIA 424S *2001*
47-970-08
Biasi Savio GAIA 428S *2001*
47-970-09
Delivery
Free next day UK delivery is available on orders over £50.
Orders placed before 3 PM are usually dispatched the same working day.
Delivery times may vary for remote areas, Highlands, islands, and non-mainland UK destinations.
If you need urgent delivery help, please contact our customer service team before placing your order.
All Orders First 30 Days:
You can return or cancel your orders for any reason at any time within 30 days of receipt. After 30 days, we reserve the right to charge a restocking fee or refuse the return.
Parts must be returned in the same condition and packaging as received, or we may deduct a percentage of the cost of the part.
A full refund or exchange will be agreed once the item(s) have been received and inspected to ensure they are unused and in their original packaging where applicable.
If the part is returned as faulty and is found to be working upon inspection, postage costs will be deducted from the refund.
Faulty Items After 30 Days:
All items come with a 1 year HTS warranty from the date of purchase. Warranty means HTS will repair or replace the item.
Refunds:
Our returns team will process your refund after we receive and check your items. Please allow up to 15 days for your refund to be processed.
The refund will be made to the original payment method used to place the order.
Contact Us:
For any queries, email us at returns@heatingtradesupplies.com or call +44 01912633708.
Customer Services
National Boiler Spares Ltd
Tyne View Terrace
Wallsend
Tyne and Wear
NE28 6SG
