This is my first thread, so bear with me. I have a John Deere 1435 front mower. It is a 2001 with about 600 hours. My problem is with the cooling fan. The first problem I had with it was taken to the JD dealer. They changed coolant and installed new fan. Then it did it again and they said it had a vapor lock. Then it did it again and I replaced the water temperature sensor. Worked fine until the last time I got caught in the rain. (not sure if that matters). Now when I start to mow it works fine until water gets hot, then mower blades shut off and mower water temp light comes on. Fan will not turn on to cool radaitor. I'm not sure what my real problem is. Maybe a relay? I really like the mower but not headach. Thanks for reading this.