Vaillant
Vaillant 0020020015 EcoTEC three-way plastic diverter valve
A genuine Vaillant plastic-bodied three-way diverter valve that directs heated water between the central heating and domestic hot water circuits on ecoTEC Pro and Plus boilers.
At a glance
- Also known as VAILLANT0020020015C, GLOWWORM
- Fitting must be carried out by a Gas Safe registered engineer
£108.00
£90.00 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
The Vaillant 0020020015 is a plastic-bodied three-way diverter valve fitted to a wide range of Vaillant ecoTEC Pro and ecoTEC Plus boilers. It directs heated water between the domestic hot water circuit and the central heating circuit, switching the boiler between heating radiators and providing hot water at the taps.
Signs this part needs replacing
- Central heating stays on while hot water taps are running
- Slow or delayed hot water delivery at taps
- Radiators fail to heat properly when hot water is drawn off
- Water hammer or unusual noise when switching between heating and hot water
Before you order
- Confirm the exact GC number of your boiler against the compatibility list before ordering
- Isolate gas, electricity and water before removal
- Fitting must be carried out by a Gas Safe registered engineer
Compliance
| Alternative numbers | VAILLANT0020020015C, GLOWWORM |
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