Temperature problem or thermostat failure

Hello everyone. My car is a 2005 model Peugeot 206 1.4 petrol. I built a 70-75 km road today. The engine temperature was at the bottom until the 15th km. Then he suddenly stopped and the heat jumped up to the ceiling. This event had happened to me before, water reduction etc. there is no motor even if it is not warmed up properly There is no drop in traction is fine. previously, the thermostat changed, the problem was solved. I think it is the same thing, but there is anxiety. Do you think the problem is in the thermostat again or can there be another problem?

There are a few possibilities.

Check the thermostat, when the temperature gauge is on the ceiling, open the hood of your vehicle, then look at the upper right radiator hose with your hand, if it is cold, the thermostat is defective and the lower radiator hose is also easy to come.

Check the socket outlet's installation and installation.

thanks guys thermostat changed no problem fixed but why the thermostat may have been broken for the second time in 5 months I couldn't solve it exactly