Biasi combi boiler

[Adam3610]

hi
Can u help me
I've got biasi combi boiler and connected room thermostat yesterday everything working good but when I turn on the heating flashing first light green and second red but heating is working and hot water aswell when heating is on and i turn on the tap with hot water red is gone and flashing first and second green. When heating is off on boiler flashing green first light
Thanks

 

[Agile]

Apart from not telling us the model number of your boiler I find it totally unclear what you are trying to say apart from the water and heating both work.

I think you also mean that you fitted a thermostat.

Ever thought of calling a boiler engineer to do whatever you think is needed?

Tony

 

[Adam3610]

It's a biasi riva advance he m110b 32sm/c
Just i'm not sure if everything is ok after room thermostat connected when i was using a boiler without thermostat on was first and third light on but now when thermostat is connected when i turn on the heating i've got first green flashing and second red flashing together but boiler working fine heating and hot water

 

[Agile]

I am surprised that it is still working fine.

You have somehow wrongly connected the thermostat!

Tony

 

[Adam3610]

So how this supposed to be connected?

 

[Agile]

But there is nothing connected to the boiler!

You said you have already connected it?

 

[Adam3610]

Yes but i'm not in home now i'll do the pictures after 9 pm

 

[Adam3610]

C pictures

 

[Adam3610]

So neutrai from thermostat 1 is connected into neutral in terminal 2 and terminal 1 L from thermostat link with nr 4 and connected into terminal 2 with L and last one 3 (NO) is connected with terminal 2 middle with black

 

[Agile]

I cannot easily guess what you have done.

But you only need two wires from the stat to the boiler!

Connected to 3 and 4 on your stat but with NO other connections at the stat or boiler.

Done wrongly can damage the PCB.

Tony

 

[Adam3610]

Only 2 wires ? 3 and 4 what next ? Where 3 is going what about 4 ? What about 1/2 L and N