Vaillant Diverter Valve 178978
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Vaillant Diverter Valve 178978
The Vaillant Diverter Valve (Part No: 178978) is a critical hydraulic component engineered for the first-generation ecoTEC range. This valve is responsible for switching the flow of primary heated water between the central heating circuit and the domestic hot water plate heat exchanger. It ensures that when a hot water demand is detected, the heating circuit is temporarily isolated to provide maximum thermal energy to the taps.
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Reliable Actuation: Designed to work in perfect synchronization with the diverter motor to ensure smooth and immediate switching between modes.
-
Preventing Heat Bleed: Features precision-molded internal seals that prevent hot water from leaking into the radiators while the boiler is providing domestic hot water.
-
High-Quality Construction: Manufactured using durable, heat-resistant composite materials to withstand the high pressures and temperatures of a condensing boiler system.
-
Direct Replacement: This is the genuine OEM part required for addressing common "crossover" faults or blocked domestic hot water delivery in early ecoTEC plus and pro models.
Compatible Models:
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VAILLANT ecoTEC plus 824 (2005-2005)
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VAILLANT ecoTEC plus 824 (2005-2010)
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VAILLANT ecoTEC plus 831 (2005-2005)
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VAILLANT ecoTEC plus 831 (2005-2010)
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VAILLANT ecoTEC plus 837 (2006-2010)
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VAILLANT ecoTEC plus 937 (2006-2010)
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VAILLANT ecoTEC pro 24 (2006-2010)
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VAILLANT ecoTEC pro 28 (2005-2010)
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VAILLANT VUI 376/3-5 (2006-2010)
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VAILLANT VUW 246/3-3 R1 (2006-2010)
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VAILLANT VUW 246/3-5 (2005-2005)
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VAILLANT VUW 246/3-5 R1 (2005-2010)
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VAILLANT VUW 286/3-3 (2005-2005)
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VAILLANT VUW 286/3-3 R1 (2005-2010)
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VAILLANT VUW 316/3-5 (2005-2005)
-
VAILLANT VUW 316/3-5 R1 (2005-2010)
-
VAILLANT VUW 376/3-5 R1 (2006-2010)
-
Vaillant Ecotec Plus 824 VUW 246/3-5 2005-2012 — 47-044-31
-
Vaillant Ecotec Plus 831 VUW 316/3-5 2005-2013 — 47-044-32
-
Vaillant Ecotec Plus 937 VUI 376/3-5 2006-2012 — 47-044-39
-
Vaillant Ecotec Pro 24 VUW 246/3-3 R1 2006-2008 — 47-044-36 R1
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Vaillant Ecotec Pro 24 VUW 246/3-3 R2 2008-2012 — 47-044-36 R2
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Vaillant Ecotec Pro 28 VUW 286/3-3 R1 2005-2008 — 47-044-30 R1
-
Vaillant Ecotec Pro 28 VUW 286/3-3 R2 2008-2012 — 47-044-30 R2
Vaillant Diverter Valve 178978
The Vaillant Diverter Valve (Part No: 178978) is a critical hydraulic component engineered for the first-generation ecoTEC range. This valve is responsible for switching the flow of primary heated water between the central heating circuit and the domestic hot water plate heat exchanger. It ensures that when a hot water demand is detected, the heating circuit is temporarily isolated to provide maximum thermal energy to the taps.
-
Reliable Actuation: Designed to work in perfect synchronization with the diverter motor to ensure smooth and immediate switching between modes.
-
Preventing Heat Bleed: Features precision-molded internal seals that prevent hot water from leaking into the radiators while the boiler is providing domestic hot water.
-
High-Quality Construction: Manufactured using durable, heat-resistant composite materials to withstand the high pressures and temperatures of a condensing boiler system.
-
Direct Replacement: This is the genuine OEM part required for addressing common "crossover" faults or blocked domestic hot water delivery in early ecoTEC plus and pro models.
Compatible Models:
-
VAILLANT ecoTEC plus 824 (2005-2005)
-
VAILLANT ecoTEC plus 824 (2005-2010)
-
VAILLANT ecoTEC plus 831 (2005-2005)
-
VAILLANT ecoTEC plus 831 (2005-2010)
-
VAILLANT ecoTEC plus 837 (2006-2010)
-
VAILLANT ecoTEC plus 937 (2006-2010)
-
VAILLANT ecoTEC pro 24 (2006-2010)
-
VAILLANT ecoTEC pro 28 (2005-2010)
-
VAILLANT VUI 376/3-5 (2006-2010)
-
VAILLANT VUW 246/3-3 R1 (2006-2010)
-
VAILLANT VUW 246/3-5 (2005-2005)
-
VAILLANT VUW 246/3-5 R1 (2005-2010)
-
VAILLANT VUW 286/3-3 (2005-2005)
-
VAILLANT VUW 286/3-3 R1 (2005-2010)
-
VAILLANT VUW 316/3-5 (2005-2005)
-
VAILLANT VUW 316/3-5 R1 (2005-2010)
-
VAILLANT VUW 376/3-5 R1 (2006-2010)
-
Vaillant Ecotec Plus 824 VUW 246/3-5 2005-2012 — 47-044-31
-
Vaillant Ecotec Plus 831 VUW 316/3-5 2005-2013 — 47-044-32
-
Vaillant Ecotec Plus 937 VUI 376/3-5 2006-2012 — 47-044-39
-
Vaillant Ecotec Pro 24 VUW 246/3-3 R1 2006-2008 — 47-044-36 R1
-
Vaillant Ecotec Pro 24 VUW 246/3-3 R2 2008-2012 — 47-044-36 R2
-
Vaillant Ecotec Pro 28 VUW 286/3-3 R1 2005-2008 — 47-044-30 R1
-
Vaillant Ecotec Pro 28 VUW 286/3-3 R2 2008-2012 — 47-044-30 R2
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.
