How the snow and surface affect the work
Did the machine change, or did the snow? Compare the latest use with the last time it worked well. Heavier snow, refreezing and the surface underneath belong in that comparison.
Snow and surface conditions
Snow and working conditionsIt handled powder well, but struggles with heavier snow
Heavier snow changes the workload. Compare engine behavior, clearing and movement before deciding whether the snowblower needs assessment.
Snow and working conditionsIt behaved differently after the snow thawed and refroze
Note what changed after a thaw and refreeze: a control, the way the snowblower moved, or repeated blockage. Don’t force a stuck mechanism.