ISX Fan Running
We just bought an 07 Monaco with a ISX 600 and the Engine fan never seems to stop or slow down. Has anybody got any experience with this?
Forum Discussion
johnsonbert wrote:
We have an ISL 400 in ours, in the left of the engine compartment there is a fan controller switch that controls the fan speed by controlling the hyd pump to the fan motor. It is by Sauer Danfoss and is about 2 1/2" square with a little valve on top. If yours is the same, it will have a group of wires coming to it and a couple of hyd lines, mine is near the hydraulic filter. The first thing to try is to check the connection. We had this problem on ours, it would intermittently go off and on at will. If there is no connection, or bad connection, it will run wide open all the time. Cleaning the connections on ours solved the problem. There is a monaco specific thread on irv2.com which will be your friend in this and many matters Monaco related. Congrats on the new rig and enjoy. Hope this may help, Happy Trails Bert
if the hydralic fan speed switch is disconnected it will run wide open by factory default.Its designed to work this way in case the wire harness were to get ripped off so engine will not over heat
this unit is also controlled by signals sent to ecm by temperature sensors so you may have a bad engine sensor or a bad control switch
