twin fans operation

[Magenta Sunset]

eve all. been reading the guides on the twin fan setup. mine seems different, in that one fan comes on 1st, followed by the 2nd one on & off when the temp rises or i have the a/c on. I can tell this as the 2nd fan has an unbalanced blade.
is there a change of spec around y2k?

[pablo712]

Rare. Mine work both.
1st speed both in serial connection (7V each fan)
2nd speed both in parallel connection (14V each fan)
All controlled from 3 relays in the middle of front bumper

[Magenta Sunset]

i'll take another look :/

[P-Courty]

Same as mine series and parallel which is why the 3rd intermediate relay is used to switch circuit types see my thread if unsure latest pics are of the fans and setup

Sent from my GT-I8200N using Tapatalk