At what point should the rad fans turn on.

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.as mine aren't, but temp gauge seems to not wanna go past halfway in these conditions whilst on driveway

(engine bay fan comes on though)?

Has a new rad and sensor, am wondering if the previous owner half removing aircon has any influence? rev3 na by the way.

If rad sensor is unplugged they both come on.

Whats next to check? Have a feeling this may have had something to do with the recent HG failure, so need to be sure.
