Vaillant
Vaillant Flow Sensor Plug 0020231123
Vaillant flow sensor plug, part 0020231123, for Home Combi, Home System and Ecofit PURE and Sustain boilers.
At a glance
- Also known as 1388172
£9.42
£7.85 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 flow sensor plug, part number 0020231123, is a plug component used on the flow sensor circuit of compatible Vaillant domestic gas boilers. It forms part of the boiler's hot water flow sensing arrangement, connecting the sensor to the appliance's control and detection circuit. It is supplied as a single plug component.
Signs this part needs replacing
- Hot water draw-off fails to trigger the boiler to fire
- Domestic hot water delivery is intermittent or cuts out during use
- The boiler reports a flow sensor or hot water detection fault through its diagnostics
- The plug or its connector shows corrosion, heat damage or a poor connection
- The plug body is cracked or the wiring connection is loose at the sensor
Before you order
- Confirm your boiler model and GC number against the fit list above
- Check the part number on the existing component before removal
- Inspect the sensor connector and wiring for damage, as the fault may lie with the sensor rather than the plug
- Confirm whether the plug alone or the complete flow sensor assembly is required for your repair
Compliance
| Alternative numbers | 1388172 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| VAILLANT HOME COMBI 25 -A | 47-044-62 | 47-044-62 | — | — |
| VAILLANT HOME COMBI 30 -A | 47-044-63 | 47-044-63 | — | — |
| VAILLANT HOME COMBI 35 -A | 47-044-64 | 47-044-64 | — | — |
| VAILLANT HOME SYSTEM 12 -A | 41-044-94 | 41-044-94 | — | — |
| VAILLANT HOME SYSTEM 15 -A | 41-044-95 | 41-044-95 | — | — |
| VAILLANT HOME SYSTEM 18 -A | 41-044-96 | 41-044-96 | — | — |
| VAILLANT HOME SYSTEM 25 -A | 41-044-97 | 41-044-97 | — | — |
| VAILLANT ecoFIT PURE 612 - VU 126/6-3 (2016) | 41-694-03 | 41-694-03 | — | — |
| VAILLANT ecoFIT PURE 615 - VU 156/6-3 (2016) | 41-694-04 | 41-694-04 | — | — |
| VAILLANT ecoFIT PURE 618 - VU 186/6-3 (2016) | 41-694-05 | 41-694-05 | — | — |
Showing 10 of 21 compatible appliances.
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.
VAILLANT appliance manual — HOME COMBI 25 -A (GC 47-044-62), HOME COMBI 30 -A (GC 47-044-63), HOME COMBI 35 -A (GC 47-044-64)
manualmanualVAILLANT appliance manual — HOME SYSTEM 12 -A (GC 41-044-94), HOME SYSTEM 15 -A (GC 41-044-95), HOME SYSTEM 18 -A (GC 41-044-96), HOME SYSTEM 25 -A (GC 41-044-97)
manualmanualVAILLANT appliance manual — ecoFIT PURE 612 - VU 126/6-3 (2016) (GC 41-694-03), ecoFIT PURE 615 - VU 156/6-3 (2016) (GC 41-694-04), ecoFIT PURE 618 - VU 186/6-3 (2016) (GC 41-694-05), ecoFIT PURE 625 - VU 256/6-3 (2016) (GC 41-694-06), ecoFIT PURE 630 - VU 306/6-3 (2016) (GC 41-694-07)
manualmanualVAILLANT appliance manual — ecoFIT PURE 825 - VUW 256/6-3 (2016) (GC 47-044-68), ecoFIT PURE 830 - VUW 306/6-3 (2016) (GC 47-044-74), ecoFIT PURE 835 - VUW 356/6-3 (2016) (GC 47-044-70)
manualmanualVAILLANT appliance manual — ecoFIT SUSTAIN 615 - VU 156/6-3 (2018) (GC 41-694-30), ecoFIT SUSTAIN 618 - VU 186/6-3 (2018) (GC 41-694-31), ecoFIT SUSTAIN 630 - VU 306/6-3 (2018) (GC 41-694-32)
manualmanualVAILLANT appliance manual — ecoFIT SUSTAIN 825 - VUW 256/6-3 (2016) (GC 47-044-71), ecoFIT SUSTAIN 830 - VUW 306/6-3 (2016) (GC 47-044-72), ecoFIT SUSTAIN 835 - VUW 356/6-3 (2016) (GC 47-044-73)
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