Vaillant
Vaillant Valve 0020266453
Vaillant 0020266453 valve for Arotherm 5/5 VWL 35/5, 55/5 and 75/5 AS 230V S2 heat pumps.
At a glance
- Part type: valve
- Appliance family: Arotherm 5/5 VWL
- Also known as 1389018
£71.02
£59.18 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 0020266453 is a valve supplied for the Arotherm 5/5 VWL range of air source heat pumps. It forms part of the appliance's hydraulic circuit, controlling flow through the relevant section of the unit. The part is listed by Vaillant under the VWL appliance family.
Signs this part needs replacing
- Visible water or glycol weeping from the valve body or its connections
- Loss of system pressure that cannot be traced to any other component
- Poor or inconsistent flow through the heat pump circuit
- Valve failing to hold position or respond as expected during operation
- Corrosion or scale build-up around the valve seat or spindle
Before you order
- Confirm your appliance model matches one of the fit lines listed above
- Check the part number on the existing component against 0020266453
- Identify the valve's position in the hydraulic circuit before removal
- Isolate and drain the relevant circuit before fitting
Compliance
| Alternative numbers | 1389018 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| VAILLANT aroTHERM 5/5 VWL 35/5 AS 230V S2 (2019-2022) | — | — | — | |
| VAILLANT aroTHERM 5/5 VWL 35/5 AS 230V S2 R1 (2019-2022) | — | — | — | |
| VAILLANT aroTHERM 5/5 VWL 55/5 AS 230V S2 (2019-2022) | — | — | — | |
| VAILLANT aroTHERM 5/5 VWL 55/5 AS 230V S2 R1 (2019-2022) | — | — | — | |
| VAILLANT aroTHERM 5/5 VWL 75/5 AS 230V S2 (2022) | — | — | — | |
| VAILLANT aroTHERM 5/5 VWL 75/5 AS 230V S2 R1 (2022) | — | — | — |
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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