Cooling Fans

[jmindler]

Hello all, I am trying to find a schematic for the tripple pressure swith for the ac system on my 1998 Q45. The question that I have is, are the electric fans to activate when the ac is tured on, or does the head pressure need to reach a predetermined pressure. I would like the fans to turn on with the ac because when it is 90+ outside, the ac works better when the fans are on. My fans do not come on right away.

Thanks in advance, John

[Raxephon]

Hello all, I am trying to find a schematic for the tripple pressure swith for the ac system on my 1998 Q45.

http://www.phatg20.net is where you'll find a FSM for a '98 Q45, which will, in turn, have the schematic you are in search of.

[qship96]

if it is like the 96, fan is controlled {turned on} by high coolant temp and/or high pressure in a/c system-if running ac in cold weather,fans may not come on at all!