Hi Guys

I have a KH vereda and noticed that the thermo fan has three speeds, condensor fan has two. I tried pulling the relays out today one by one and found out when the air con switches on the fans are on medium speed. Ive tested all the relays and they are working.

Does anyone know what situation causes the fan to switch to high speed? I am trying to get max performance out of my aircon ( its bloody hot and humid up here) so need all the air flow I can get at idle. I was thinking about putting an extra fan in front of the condensor.

Cheers