no hot water

[Davek73]

can anyone help i have no hot water I've tryed the valve moving little handle but not working i have the water tank in loft

 

[CBW]

what is the cylinder thermostat set to? Does the programmer work? What valve - 2 or 3 port?

 

[Davek73]

70c programmer works and it's 2 port valve

 

[CBW]

So it’s likely to be the cylinder thermostat or the 2 port valve (microswitch or synchron motor).

 

[Davek73]

How do i test what one it is thanks

 

[CBW]

Using a multimeter. Try latching the lever into manual and create a heating demand, if water goes to cylinder as well then it’s likely to be the zone valve

 

[dal5band]

Open the hot water valve manually - make sure the little lever is hooked in so it stays in the open position - there is a little indent where the lever locks in. Then turn on the heating by raising the room thermostat - this is so the boiler comes on. Then feel the pipes on the HW valve - should start getting hot. This will heat the HW tank until you can get the valve fixed.