Horstmann c27 disconnected

[Speedster]

My Horstmann c27 got disconnected some of the wire became loose and I have no idea what goes where now, I tried to follow some online diagrams but just getting a blank display now. The connections on the back of the unit are
N L 1 2 3 4 5 6. I have a fully pumped system with thermostat. There are two electrical cables one of which has the following colours:

Green/yellow - which I know if earth and can connect that up fine
Blue
Red
Yellow

Second cable has:
Red
Blue

Can someone please tell me how I need to wire this up. Thanks

 

[TCCHeating]

You need to find out which wires go to where on the system. Just giving us the colours of the wires doesnt help, as different colours can be used for different things. Any blue wires that are used as a live instead of neutral should be sleaved accordingly, but that doesn't always happen! Do you have a multimeter?

 

[Speedster]

No I don't have a multimeter

 

[TCCHeating]

No I don't have a multimeter

You will need one to trace the wires i'm afraid. Without one it is just a guessing game.

 

[Speedster]

Ok thanks, will have to get one of these or call the electrician