Alternative
Vaillant Fitment 3-Way Diverter Valve 0020020015 (Alternative)
Alternative plastic 3-way diverter valve, matched to the Vaillant 0020020015 fitment, for ecoTEC Pro/Plus boilers.
At a glance
- Also known as 2083005
- Fitting must be carried out by a Gas Safe registered engineer
£57.60
£48.00 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
This is a plastic 3-way diverter valve that directs hot water between the central heating circuit and the domestic hot water circuit in Vaillant combi boilers, matched to the genuine Vaillant fitment 0020020015. It is an alternative (non-OEM) part rather than a Vaillant-branded original.
Signs this part needs replacing
- No hot water or no heating, with the other circuit still working
- Radiators stay lukewarm while a tap is running (cross-flow)
- Valve motor runs but the valve does not move
- Water leaking from the valve body
- Intermittent hot water supply
Before you order
- Confirm your exact boiler model and serial number against the fits list
- Isolate the water and electrical supply before removal
- Fitting must be carried out by a Gas Safe registered engineer
Compliance
| Alternative numbers | 2083005 |
|---|
No fitment data held for this part.
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.
No documents held for this part. The technical team will source them from the manufacturer — usually the same working day.
No technical questions yet for this part.
Not sure which part?
Search by part number, product name or brand — our technical team confirms fitment before anything is dispatched.