Boiler help asap please

[Kikij]

Hi my sister has just moved into a new rented property she can't seem to get her heating to work. The pressure was low but we managed to turn the pressure valve and she now has hot water. we can't indentify the make of the boiler as it has nothing written on it. It has a grundfos Type: up s15-50 pump on the left. Can someone help so she can get her heating working please. The landlord isn't available Untill Monday

 

[Riley]

Don't suppose she has a room thermostat on a wall somewhere

 

[Dotty]

Increase the pressure to just over 1 bar.

 

[Billy Bob Bob]

No advice will be given on this forum,its rented,ring the landlord bud,also you need a valid gas safety certificate by law ,i know this is not much help but we can not give ouit safety advice to non qualified folk,stay safe