Looking for some help on an issue I am having with a WA380-6 Loader, after running for ~10-15 minutes the HVAC display shows HL.E and only the fan speed buttons change the speed display. Nothing else other than the on/off button work. Restart the machine and the HVAC system seems to work properly again, you can change the temp and it responds properly. After 10 minutes again though it shows HL.E I cant seem to find anything in the operator or shop manual on this, anyone know what this might be?
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