Vaillant
Vaillant Hydroblock 0010028554
Hydroblock for Vaillant EcoTEC VU 610 to 635 Cs/1-5 boilers, part number 0010028554.
At a glance
- Part type: hydroblock
- Appliance family: EcoTEC VU Cs/1-5 (2023)
- Also known as 1391636
£32.62
£27.18 ex. VAT · VAT at 20%
Same-day dispatch
Ordered by 4pm Mon–Fri, 10:30am Sat.
30-day returns
Unused, in original packaging.
What it is
The Vaillant 0010028554 Hydroblock is a hydraulic assembly fitted to Vaillant EcoTEC VU boiler models. It carries the internal waterways and connections that route water through the appliance's hydraulic circuit. This part is listed for the 2023 Cs/1-5 range.
Signs this part needs replacing
- Water weeping or leaking from the hydroblock body or its seals
- Reduced flow, poor heating output or inconsistent hot water delivery
- Kettling, banging or unusual noise from the hydraulic section
- Scale or debris build-up restricting flow through the block
- Fault codes relating to water flow or diverter operation
Before you order
- Confirm the appliance model and GC number from the boiler rating plate
- Check the part number 0010028554 on the existing component
- Verify the boiler is one of the listed EcoTEC VU Cs/1-5 variants
- Inspect seals and connections for damage before fitting
Compliance
| Alternative numbers | 1391636 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| VAILLANT ecoTEC 610 VU 10 CS/1-5 (2023) | 41-694-45 | 41-694-45 | — | — |
| VAILLANT ecoTEC 615 VU 15 CS/1-5 (2023) | 41-694-46 | 41-694-46 | — | — |
| VAILLANT ecoTEC 620 VU 20 CS/1-5 (2023) | 41-694-47 | 41-694-47 | — | — |
| VAILLANT ecoTEC 625 VU 25 CS/1-5 (2023) | 41-694-48 | 41-694-48 | — | — |
| VAILLANT ecoTEC 630 VU 30 CS/1-5 (2023) | 41-694-49 | 41-694-49 | — | — |
| VAILLANT ecoTEC 635 VU 35 CS/1-5 (2023) | 41-694-50 | 41-694-50 | — | — |
Documents & drawings
Everything we hold for this part. Where a document exists but we don't hold it, the technical team will source it from the manufacturer — usually the same working day.
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