Engine cooling fan on all the time

[Woofie27]

Hi,
Just recently the engine cooling fan comes on as soon as I switch the ignition on. Does not go off until the ignition is switched off. Independent of the temperature outside. Is there a sensor or fuse that needs changing /repairing? Putting the roof up and down, sounds very noisy in quite campsites.Thank you

 

[WelshGas]

Probably yes. Which one will depend on any Diagnostic codes stored, otherwise it could be very hit and miss.

 

[Loz]

Just recently the engine cooling fan comes on as soon as I switch the ignition on. Does not go off until the ignition is switched off.

This could be a faulty temperature switch, disconnecting the plug would prove it. Unfortunately you haven't provided any vehicle details or year to advise further.

 

[franckyuccas]

Hello,
Last year I've got the same issue.
It was the "air quality sensor".
Make a search, you will find it's pretty common.