Most snow blowers do not have a transmission. They have a 'friction disc' that is belt driven. Sometimes rust build up from one year to the next will keep the friction disc from sliding to higher 'gear' to lower 'gear'. You may want to remove the lower cover under the traction housing to inspect the disc, belts, and chains.
I’m happy to assist further over the phone at https://www.6ya.com/expert/rolandw_c013176d62ee17ae
Answers & Comments
Most snow blowers do not have a transmission. They have a 'friction disc' that is belt driven. Sometimes rust build up from one year to the next will keep the friction disc from sliding to higher 'gear' to lower 'gear'. You may want to remove the lower cover under the traction housing to inspect the disc, belts, and chains.
I’m happy to assist further over the phone at https://www.6ya.com/expert/rolandw_c013176d62ee17ae