Help wiring thermostat...

[marpz]

Hello,

Could somebody please help me with this one. I'm using a thermostat for my floor heating. I want it to only show me temp (light blink), but not heat the floor. What wires should I disconnect in order to do this?
I'm a beginner so it would really help if you could name the numbers on the diagram down below.

https://ibb.co/Gct3G7x

Thank you in advance,
Kristjan M

 

[SFK]

Disconnect wires from 3 and 4 as these are the heater wire.
Only one of the two actually needs disconnecting.
But I am suggesting both as it reduces risk of the wire being unexpectedly live.

Remember to isolate power first (at consumer unit or fuse box if necessary).
Sfk