Defender overheating

[Jaycee B]

My HD10 fan seems to come on a lot with no real workout after about 2-3 minutes. Curious to see if it’s just me or do others experience the same thing. 4 bars on the heat gauge after a few minutes the fan comes on. Bars drop to down to 3 then back to 4 almost as soon as fan shuts off and so on and so on. In winter just putting around.

[Mark]

Sometimes I have noticed the fan come on when the engine hasn't been running long.  It's set for a pretty narrow window to turn on at 205F and off at 198F.  If it's cold outside maybe it's staying cool enough that it's right near that temperature range that's tripping on and off a lot.  I haven't really noticed how many bars mine normally shows but I'll watch it next time I'm out.  At 237F it will go into limp mode and then you know you got an issue.