I have a 2007 Gehl 4640e Turbo with 500 hours on it. Yesterday it was 90 degrees here. As soon as I would start my machine the heat sensor light on the right panel would turn on, and the machine would start beeping. After running for about 30 seconds the machine would just shut off. The temperature guage was showing that the machine was not hot at all. Any ideas of what would trip this sensor, and/or how I can fix it. Thank you!