Engine cooling fan on all the time

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

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

Woofie27 said:

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.

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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.

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.