Radiator Coolant Fan Runs All The Time
Noticed my hydraulic radiator fan is running all the time. Gillig tells me that there is a sensor to control the fan solenoid. Gillig sent me a circuit diagram for a 1994 bus with rear battery b...
Forum Discussion
The good news is it's not a Sauer Danfoss controller... $$$. I believe your sensors are normally closed so you get 12V to the fan solenoid which slows it down until needed. Looks like the air inlet temp sensor keeps the fan off when cool air is coming into the engine intake so bypassing it should not hurt anything... in fact I'm not even sure why it's needed. The Sauer Danfoss complicated system only senses engine temp which is what you've done in the last diagram.
*At some point (first diagram) they did not feel the need for a air inlet temp sensor. I do not think you need one now but if it's a reasonably price sensor... why not as it may sense the need for more cooling sooner than the engine temp sensor.
*At some point (first diagram) they did not feel the need for a air inlet temp sensor. I do not think you need one now but if it's a reasonably price sensor... why not as it may sense the need for more cooling sooner than the engine temp sensor.
