Main Plate Heat Exchanger O-Ring Seal (248049)
The Main Plate Heat Exchanger O-Ring Seal (Part No: 248049) is a high-grade, pressure-resistant elastomeric sealing ring engineered to provide a flush, leak-proof interface between the boiler's secondary plate heat exchanger and the main hydraulic inlet/outlet ports. Because the domestic hot water (DHW) circuit experiences frequent temperature spikes and structural pressure fluctuations, this durable rubber seal prevents primary heating water and secondary tap water from leaking into the boiler tray or causing internal circuit cross-contamination.
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Premium Thermal Resiliency: Molded from heavy-duty elastomeric compounds designed to withstand continuous expansion and contraction cycles without losing elastic retention.
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Pressure Drop Elimination: Directly replaces flattened, degraded, or brittle original seals that cause system dripping, preventing chronic boiler pressure loss.
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Precise Hydro-Block Alignment: Specifically dimensioned to sit cleanly inside the seating grooves of both brass and composite hydraulic groups, minimizing the risk of seal pinching during heat exchanger installation.
Compatible Models
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Main Combi 24 — 47-474-01
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Main Combi 24 HE — 47-474-02
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Main Combi 30HE — 47-474-03
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Main 25 Eco Elite Post Serial Number MMH 1512 — 47-467-08
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Main 25 Eco Elite Pre Serial Number MMH 1512 — 47-467-08-
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Main 30 Eco Elite Post Serial Number MMH 1512 — 47-467-09
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Main 30 Eco Elite Pre Serial Number MMH 1512 — 47-467-09-
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Main 25 Combi ERP (Serial No Ending AC) — 47-467-12 AC
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Main 25 Combi ERP (Serial No Ending BC) — 47-467-12 BC
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Main 25 Combi ERP (Serial No Ending CC) — 47-467-12 CC
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Main 25 Combi ERP (Serial No Ending DC) — 47-467-12 DC
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Main 30 Combi ERP (Serial No Ending AC) — 47-467-13 AC
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Main 30 Combi ERP (Serial No Ending BC) — 47-467-13 BC
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Main 30 Combi ERP (Serial No Ending CC) — 47-467-13 CC
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Main 30 Combi ERP (Serial No Ending DC) — 47-467-13 DC
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Main Combi 25 Eco — 47-467-01
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Main Combi 30 Eco — 47-467-03
Main Plate Heat Exchanger O-Ring Seal (248049)
The Main Plate Heat Exchanger O-Ring Seal (Part No: 248049) is a high-grade, pressure-resistant elastomeric sealing ring engineered to provide a flush, leak-proof interface between the boiler's secondary plate heat exchanger and the main hydraulic inlet/outlet ports. Because the domestic hot water (DHW) circuit experiences frequent temperature spikes and structural pressure fluctuations, this durable rubber seal prevents primary heating water and secondary tap water from leaking into the boiler tray or causing internal circuit cross-contamination.
-
Premium Thermal Resiliency: Molded from heavy-duty elastomeric compounds designed to withstand continuous expansion and contraction cycles without losing elastic retention.
-
Pressure Drop Elimination: Directly replaces flattened, degraded, or brittle original seals that cause system dripping, preventing chronic boiler pressure loss.
-
Precise Hydro-Block Alignment: Specifically dimensioned to sit cleanly inside the seating grooves of both brass and composite hydraulic groups, minimizing the risk of seal pinching during heat exchanger installation.
Compatible Models
-
Main Combi 24 — 47-474-01
-
Main Combi 24 HE — 47-474-02
-
Main Combi 30HE — 47-474-03
-
Main 25 Eco Elite Post Serial Number MMH 1512 — 47-467-08
-
Main 25 Eco Elite Pre Serial Number MMH 1512 — 47-467-08-
-
Main 30 Eco Elite Post Serial Number MMH 1512 — 47-467-09
-
Main 30 Eco Elite Pre Serial Number MMH 1512 — 47-467-09-
-
Main 25 Combi ERP (Serial No Ending AC) — 47-467-12 AC
-
Main 25 Combi ERP (Serial No Ending BC) — 47-467-12 BC
-
Main 25 Combi ERP (Serial No Ending CC) — 47-467-12 CC
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Main 25 Combi ERP (Serial No Ending DC) — 47-467-12 DC
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Main 30 Combi ERP (Serial No Ending AC) — 47-467-13 AC
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Main 30 Combi ERP (Serial No Ending BC) — 47-467-13 BC
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Main 30 Combi ERP (Serial No Ending CC) — 47-467-13 CC
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Main 30 Combi ERP (Serial No Ending DC) — 47-467-13 DC
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Main Combi 25 Eco — 47-467-01
-
Main Combi 30 Eco — 47-467-03
We have a 14-day return policy, which means you have 14 days after receiving your item to request a return.
To be eligible for a return, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase.This may result in some fee cuts.
The shipping fee for the returned products is our customers responsibility. Also, the shipping fee for the first shipment will be calculated and taken from the buyer. This value comes from the shipping value it cost to send your initial order.
To start a return, you can contact us at support@aspares.co.uk If your return is accepted, we’ll send you a return shipping label, as well as instructions on how and where to send your package. Items sent back to us without first requesting a return will not be accepted.
You can always contact us for any return question at support@aspares.co.uk
Damages and issues
Please inspect your order upon reception and contact us immediately if the item is defective, damaged or if you receive the wrong item, so that we can evaluate the issue and make it right.
Exceptions / non-returnable items
Certain types of items cannot be returned, like perishable goods (such as food, flowers, or plants), custom products (such as special orders or personalised items), and personal care goods (such as beauty products). We also do not accept returns for hazardous materials, flammable liquids, or gases. Please get in touch if you have questions or concerns about your specific item.
Unfortunately, we cannot accept returns on sale items or gift cards.
Exchanges
The fastest way to ensure you get what you want is to return the item you have, and once the return is accepted, make a separate purchase for the new item.
Refunds
We will notify you once we’ve received and inspected your return, and let you know if the refund was approved or not. If approved, you’ll be automatically refunded on your original payment method. Please remember it can take some time for your bank or credit card company to process and post the refund too.
