Our L350F got hot today. Went to check it out, had codes for high charge air temp and high coolant temp. Fired it up and noticed the cooling fan not spinning at all. Also has code 1048-7 that comes up briefly when the engine is running that has to do with brake charge pressure. The fan will spin both ways when you spin it by hand. I was going to check brake charge pressure tomorrow. I did check fan pressures for P3 with the ps line hooked up it read around 430 psi with it blocked off it read 290 psi. Putting in fan pump test mode did not change those readings. 430 is high, book says should be around 350.