why after i drove my boxster for 30mins them tempature will at "0" of 180

[ferrari355]

Originally Posted by MNBoxster

Hi,

The Ballast Resistor is in-line with the wiring harness between the two fans. It is integral to the harnes, but available as a separate part (PN# 996.616.101.00) which must be spliced into the harness. Hope this helps...

Happy Motoring!... Jim'99

sorry that i still dont get it, is it on the back of the left fan? is that resistor for both fans? if so why there is only right fan is working now? also can i run a wire from the right fan to the left would be that easier?

[MNBoxster]

Originally Posted by ferrari355

sorry that i still dont get it, is it on the back of the left fan? is that resistor for both fans? if so why there is only right fan is working now? also can i run a wire from the right fan to the left would be that easier?

Hi,

The Ballast Resistor is integral to the Fan wiring harness, just before the connector. There is one for each Fan. It reduces the voltage supply for low speed Fan operation. This resistor dissipates a great deal of heat and as a result it burns out periodically. The part # is: PN# 996.616.101.00 and it costs about $20. There is one resistor for each Fan. To replace, you must cut out the old one and splice the new one in it's place.


Two-speed fan operation? Why not forget about fixing the ballast resistor and just run the fan at high speed? Because there is a large inrush of current when going from OFF to High Speed directly and the High Speed fuse or relay may blow, leaving you with no Cooling Fan. Lastly, this is very hard on the fan bearings, shorting the life of this expensive Fan (PN# 996.624.135.00) - about $300.

The other possibility is that the Fan itself has failed and might need replacing. But, there are two things you can do. Just replace the Resistor anyway because it's most likely the issue and is a much cheaper starting point, or either swap the Fans Lft. for Rht. to see if the other Fan indeed operates. You could also fashion a jumper harness and leave the Fans in place accomplishing the same thing. Hope this helps...

Happy Motoring!... Jim'99

[ferrari355]

thanks for you early replys! MNBoxster
have another question, is there any way i can bypass the resistor?

[ferrari355]

also i did hook up a battery to the fan directly, the fan worked. i also found the c10 fuse but it was blown, i put a good fuse on c10 but the fan is still not working and the fuse wont blow again.