Vaillant
Vaillant Siphon 0020195484
Vaillant 0020195484 siphon for ecoTEC Plus, HOME Regular, Ecofit PURE and Ecofit Sustain VU gas boilers.
At a glance
- Also known as 1387920
Showing prices
£9.42
£7.85 ex. VAT · VAT at 20%
Available to order · 3 working days
Available to order · 3 working days
Not certain it's the right part? The technical team verifies fitment before dispatch — no charge, and it stops a second trip.Call the technical teamSend a technical question
Same-day dispatch
Ordered by 4pm Mon–Fri, 10:30am Sat.
30-day returns
Unused, in original packaging.
What it is
The Vaillant 0020195484 is a siphon for Vaillant gas boilers. It is listed in the condensate trap category for ecoTEC Plus, HOME Regular, Ecofit PURE and Ecofit Sustain VU models. It forms part of the boiler's condensate handling assembly.
Signs this part needs replacing
- Water or condensate leaking from the siphon or trap area.
- Boiler locking out or failing to fire because condensate cannot drain.
- Gurgling or bubbling noises from the condensate route.
- Visible cracks, blockages or debris in the siphon body.
- Water pooling beneath the boiler.
Before you order
- Confirm the boiler model against the fit list.
- Check the existing siphon part number or identification.
- Inspect associated condensate pipework and seals for damage.
- Check the appliance's parts list for the correct siphon variant.
Compliance
| Alternative numbers | 1387920 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| VAILLANT HOME REGULAR 12 -A | 41-044-88 | 41-044-88 | — | — |
| VAILLANT HOME REGULAR 15 -A | 41-044-89 | 41-044-89 | — | — |
| VAILLANT HOME REGULAR 18 -A | 41-044-90 | 41-044-90 | — | — |
| VAILLANT HOME REGULAR 25 -A | 41-044-92 | 41-044-92 | — | — |
| VAILLANT HOME REGULAR 30 -A | 41-044-93 | 41-044-93 | — | — |
| VAILLANT VU 126/6-5 OV | 41-044-71 | 41-044-71 | — | — |
| VAILLANT VU 126/6-5 OVZ | 41-694-13 | 41-694-13 | — | — |
| VAILLANT VU 156/6-5 OV | 41-044-72 | 41-044-72 | — | — |
| VAILLANT VU 156/6-5 OVZ | 41-694-14 | 41-694-14 | — | — |
| VAILLANT VU 186/6-5 OV | 41-044-73 | 41-044-73 | — | — |
Showing 10 of 38 compatible appliances.
Fitment listings are a guide, not a guarantee. Plant-room assemblies get modified on site more often than not. Send us the GC number off the data badge and a photo of the existing valve and we will confirm before anything is dispatched.
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.
manual
VAILLANT appliance manual — HOME REGULAR 12 -A (GC 41-044-88), HOME REGULAR 15 -A (GC 41-044-89), HOME REGULAR 18 -A (GC 41-044-90), HOME REGULAR 25 -A (GC 41-044-92), HOME REGULAR 30 -A (GC 41-044-93)
manualmanualVAILLANT appliance manual — VU 126/6-5 OV (GC 41-044-71), VU 156/6-5 OV (GC 41-044-72), VU 186/6-5 OV (GC 41-044-73), VU 246/6-5 OV (GC 41-044-74), VU 306/6-5 OV (GC 41-044-75), ecoTEC PLUS 412 VU 126/6-5 OV (2015) (GC 41-044-71), ecoTEC PLUS 415 VU 156/6-5 OV (2015) (GC 41-044-72), ecoTEC PLUS 418 VU 186/6-5 OV (2015) (GC 41-044-73), ecoTEC PLUS 424 VU 246/6-5 OV (2015) (GC 41-044-74), ecoTEC PLUS 430 VU 306/6-5 OV (2015) (GC 41-044-75)
manualmanualVAILLANT appliance manual — VU 126/6-5 OVZ (GC 41-694-13), VU 156/6-5 OVZ (GC 41-694-14), VU 186/6-5 OVZ (GC 41-694-15), VU 246/6-5 OVZ (GC 41-694-16), VU 306/6-5 OVZ (GC 41-694-17), VU 356/6-5 OVZ (GC 41-044-76), ecoTEC PLUS 412 VU 126/6-5 OVZ (2016) (GC 41-694-13), ecoTEC PLUS 415 VU 156/6-5 OVZ (2016) (GC 41-694-14), ecoTEC PLUS 418 VU 186/6-5 OVZ (2016) (GC 41-694-15), ecoTEC PLUS 424 VU 246/6-5 OVZ (2016) (GC 41-694-16), ecoTEC PLUS 430 VU 306/6-5 OVZ (2016) (GC 41-694-17), ecoTEC PLUS 435 VU 356/6-5 OVZ (2016) (GC 41-044-76)
manualmanualVAILLANT appliance manual — ecoFIT PURE 412 - VU 126/6-3 OV (2016) (GC 41-694-08), ecoFIT PURE 415 - VU 156/6-3 OV (2016) (GC 41-694-09), ecoFIT PURE 418 - VU 186/6-3 OV (2016) (GC 41-694-10), ecoFIT PURE 425 - VU 256/6-3 OV (2016) (GC 41-694-11), ecoFIT PURE 430 - VU 306/6-3 OV (2016) (GC 41-694-12), ecoFIT PURE 435 - VU 356/6-3 OV (2016) (GC 41-694-19)
manualmanualVAILLANT appliance manual — ecoFIT SUSTAIN 415 - VU 156/6-3 OV (2018) (GC 41-694-33), ecoFIT SUSTAIN 418 - VU 186/6-3 OV (2018) (GC 41-694-34), ecoFIT SUSTAIN 430 - VU 306/6-3 OV (2018) (GC 41-694-35)
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