Fan does not stop

hardo · Post by **hardo** » Mon Sep 17, 2007 12:54 pm

Hi everyone, the electric fan in my Paso 906 (1990) starts running too early (at approx. 75 instead of 92 Celsius) and does not stop anymore (it runs as long as the battery has power). Hence to avoid the battery running out, I have to remove the fuse and wait till the engine is cold (if not, the fan starts running again). Any idea what I should do? Thanks a lot for your help and keep on riding, hardo

ducapaso · Post by **ducapaso** » Mon Sep 17, 2007 4:55 pm

temp switch broken.

JWilliam · Post by **JWilliam** » Wed Sep 19, 2007 5:13 pm

I have a fully electronic controller for my fan because I run my Paso with two radiators so have had to ditch the standard bi-metallic switch. The circuit is a modified Velleman thermostat and I can vary the switch on temperature along with the switch on at - switch off at - setting (hysteresis).... But it took a bit of doing.

Finnpaso · Post by **Finnpaso** » Wed Sep 19, 2007 5:26 pm

"JWilliam": I am very courious, HOW You did it, so can U explane more?

I added to my 907IE 2 extra small fans with normal switch in right handlebar to put more fans on, if driving in hot conditions in cities with low speed. When speed is higher, then it automatically cools engine more, so then i switch off those "extra fans"...

Btw, do You have 906, or 750 Paso?

JWilliam · Post by **JWilliam** » Thu Sep 20, 2007 9:32 am

Well I wouldn't be running a water cooled 750!, its a 906. When you say you are curious, do you mean the second radiator or just the electronic fan control?

Finnpaso · Post by **Finnpaso** » Thu Sep 20, 2007 12:21 pm

both, 2. radiator AND electronic system of Your fan. Sorry, i didnt know, that You had 906.

JWilliam · Post by **JWilliam** » Fri Sep 21, 2007 12:15 pm

I will send you a private message.

Finnpaso · Post by **Finnpaso** » Fri Sep 21, 2007 12:25 pm

Thanks already for You.

ducatipete · Post by **ducatipete** » Sun Sep 23, 2007 11:12 am

Buy a replacement switch from a car parts supplier, as switch is
same as fitted to many Fiat cars and will be cheaper ...m20 thread :lick:

hardo · Post by **hardo** » Mon Sep 24, 2007 3:22 pm

Thanks for your help, Hardo

ducatipete · Post by **ducatipete** » Mon Sep 24, 2007 6:16 pm

Try (Fiat) intermotor part no 50200, 92/87 degrees as std ducati one with same spade connectors and paid $20 :lick:

Finnpaso · Post by **Finnpaso** » Mon Sep 24, 2007 6:40 pm

Very good, but TO WHAT FIAT modell is it ??? Punto, Bravo, etc.... I know, that they ask it, when going to Fiat shop... :ugh:

ducapaso · Post by **ducapaso** » Tue Sep 25, 2007 2:56 pm

Maybe older models, since uno, ritmo and later.
They use to put a short cable out of the switch in earlier models

hardo · Post by **hardo** » Wed Sep 26, 2007 4:51 pm

Thanks a lot...does anybody know if the temp switch has two electric connections or just one? all the best and keep on riding, hardo

ducapaso · Post by **ducapaso** » Fri Sep 28, 2007 3:49 pm

Usually temp switches have 2 pins, as they aren't connected to the ground.
Otherwise, switches for temp indicator/red light can have just one pin