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Vokera 10026508 Compact He, Unica He (With Cartridge) Diverter Valve | AK Gas Appliance & Spares Ltd

Vokera 10026508 Compact He, Unica He (With Cartridge) Diverter Valve

This Vokera Diverter Valve - Three Way Valve 10026508 diverts heat to the hot tap or central heating radiators when required.

Price: £54.95


This service is subject to delays due to Coronavirus - please expect a minimum of 5-7 days delay!


Vokera 10026508 Compact He, Unica He (With Cartridge) Diverter Valve

This Vokera Diverter Valve is also known as a 3 way valve or three way valve, it's a mechanical boiler part that is designed to ensure the heat that's produced by the boiler is either diverted to the hot tap (if there is a demand for hot water) or around the central heating if there is a demand for central heating.

Note a Vokera combination boiler can only supply heat to 1 source at any one time, either hot water or central heating but not both at the same time.

The most common symtom of a faulty diverter valve is the lack of hot water at the hot tap. People start to turn the flow down at the hot tap in order to get hot water but after a period of time even this doesn't work. Other people realise that if they switch the central heating on they can get better hot water flow at the tap but again this only lasts for a short period of time. A good way of testing if this Vokera diverter valve is faulty is to turn the boiler off and let the central heating and boiler cool down, then turn the boiler back on but into hot water mode only. Run the hot tap and leave it running then go to the boiler, under the boiler there are 5 pipes (2 central heating pipes, 1 cold water feed pipe, 1 hot water pipe and a gas pipe) touch the central heating pipes to see if 1 of them is getting hot, if one of them is then the diverter valve has failed because instead of diverting the heat generated by the boiler to to the hot tap its allowing the heat to go down the central heating. If you were to leave the hot tap running for a longer period of time the radiators would start to get hot.

When fitting this diverter valve it is good practice to replace the O'rings to connect the diverter valve to the pipe work, these O'rings don't come with the diverter valve but can be purchased seperately (please see associated products below). Also O'rings do need to be lubricated with silicone grease for 2 reasons:

  1. To enable the pipes to slide into position easily.
  2. To prevent the Vokera hydraulics parts from leaking once changed.

We do supply a 5ml jar of silicone grease and we also supply a Diverter Valve generic washer kit please see the related products below.

Note other customers have bought some or all of the products below when purchasing this product, please check to see if you require any of the products below.

This Product Fits The Following Boilers:
Vokera Compact 25 He
Vokera Compact 29 He
Vokera Linea 28He
Vokera Linea 32He
Vokera Linea 36He
Vokera Unica 28He
Vokera Unica 32He
Vokera Unica 36He
Vokera Compact 35HE
Vokera Linea 25HE
Vokera Linea 30HE
Vokera Linea 35HE
Vokera Sabre 25 HE
Vokera Sabre 25 HE Plus
Vokera Sabre 29 HE
Vokera Sabre 29HE Plus
Vokera Sabre 35HE
Guarantees & Warranties
All parts sold by AK Gas Appliance & Spares Ltd are brand new, they are not used or reconditioned in any way. When buying from us you can rest assured your product is CE Approved and comes with a 1 Year Warranty.
Essential Information

This is Genuine Manufactured Part

This spare part is an original manufactured part, it has been supplied by the boiler manufacturer and comes with all their guarantees and warranties (normally 12 months).

Most genuine parts supplied by the manufacturer are packaged in original packaging authenticating their quality and origin. Note some original parts don’t come in any packaging and in these cases, we package the part to ensure the part is totally protected and arrives in perfect condition.

If other companies are selling this part at a substantially lower price than us there is a very good chance that their part is either compatible, re-conditioned, used or OEM. If this is the case then our competitor’s parts will not have been supplied by the boiler manufacturer.

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