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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 Boiler 3 Way Diverter Valve Actuator Nut Bush (Part Number: BI1011504) is a replacement mechanical component associated with the diverter valve assembly in selected Biasi heating systems.
The actuator nut bush forms part of the diverter valve mechanism, which is responsible for directing heated water between the central heating and domestic hot water circuits.
Unlike a complete diverter valve or motorised actuator, the nut bush is an individual mechanical component associated with the valve assembly.
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 to confirm their condition and suitability before installation.
Technical Insight & Common Failure Symptoms
The diverter valve mechanism allows the boiler to direct heated water to the appropriate circuit according to heating or domestic hot water demand.
The actuator nut bush is a mechanical part of this assembly. Wear, damage or deterioration affecting the bush may interfere with the correct operation of the associated mechanism.
Possible symptoms that may require investigation of the diverter valve mechanism include:
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Diverter valve mechanism failing to move correctly.
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Difficulty switching between central heating and domestic hot water operation.
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Intermittent heating or hot water performance.
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Visible wear or damage to the actuator nut bush.
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Loose, damaged or deteriorated mechanical connections.
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Diverter valve components not operating as intended.
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 inspected, 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
