No way to turn on in heating in new house/boiler part missing?

[greenchicken]

Hi

Looking for some advice... recently moved house and have had no need for central heating yet. However, went to check the boiler to test out the heating and I can't see a way of turning it on. Fairly sure there is a dial missing which should allow me to turn it on (where it says on/clock symbol/off). There is no separate wall thermostat anywhere that I can see. Have they left us with unworkable heating?

We are planning to install a Nest thermostat anyway (had one in last house, just need someone to install it for us) so this may not be a problem, but it's a bit annoying in the meantime...

Thanks for any advice

 

[cross thread]

Should be a switch in the hole as you said, they probably had a nest etc to override it