Thermostat broken, boiler heating rads up constantly

[Gareth1982…!!!]

My valiant thermostat has broken (kids knocked off table and wiring inside stat became disconnected) now the boiler is constantly heating up the radiators and house.

Any idea how to fix!

 

[cjg]

have you got pictures of boiler and stat.

 

[cjg]

or just turn the boiler off at switch