Heating won't come on?

[inkedcurtis]

So I've got a vaillant ecotec pro 28 boiler; hot water is working fine but heating won't come on? appears that the boiler is set to "On" rather than the timer, but isn't actually on; temp for rad is set to 75 and water is set to 60

I've gone ahead and checked all rads to make sure they don't need bleeding & all appear to be good

 

[picasso]

First thing to do is turn off the filling loop (that's the two black handles in the first picture)as the boiler has too much pressure, you will need to bleed a rad to drop the pressure before you turn the boiler on, do you have a room stat ?

 

[undertrained]

First thing to do is turn off the filling loop (that's the two black handles in the first picture)as the boiler has too much pressure, you will need to bleed a rad to drop the pressure before you turn the boiler on, do you have a room stat ?

This could also be the reason for not coming on as the pressure is too high, and will not always fire up when that high. As @picasso has asked, do you have a room thermostat (a temp dial on the wall)?

 

[EFLImpudence]

 

[picasso]

Needs both of them off, looks like the one might not be shutting off properly or its been overfilled.