I lhave a BX2380 with a LA3444 loader. Only 50 hours on the unit. While pushing snow, I heard a "pop" and the loader would not raise or lower, and the bucket won't tilt. No response from any position of the control lever. I checked all the lines and can find no leak. Oil level appears to be fine. Three point hitch raises and lowers. Any advice on what to look for or what might have gone wrong. Thanks.