Hi everyone.. having some difficulty isolating the cause of this issue. I have the red light coming on after about 10-15 mins of driving, have replaced the temp LNA1600AA to no avail. Water Pump replaced earlier this year, coolant all OK. Fan(s) coming on soon after red light and staying on for 5-6 mins after switch off. Fuses all ok and tried switching a relay on the AC (R1) water pump.. no go. Could it be the water pump again? Any further ideas to check out? Cheers guys

 

The thermostat may be sticking closed.

 

I agree with RJ237 !!! Change thermostat as soon as possible !!!! Good luck !!!