Halstead Ace High

[lazaf]

Hi,

I have just bought a house with a Halstead Ace High boiler. The heating is always on full (high) even when I turn down the Heating control on the boiler to minimum.
Any help will be appreciated.

Thanks in advance.

 

[Nixt]

You need to control it with a room stat / timeclock if you have them.

 

[gas4you]

boiler stat or NTC ?

 

[Agile]

Or somebody has not set OR has miss-set the PCB and gas valve settings so that its not modulating.

Tony