Symptoms
- Engine runs fine but snow just piles at the front
- Auger spins slowly or not at all
- Chute doesn't discharge snow
- Grinding or slipping sound from the auger area
Likely causes
- CommonPacked or icy snow clogging the auger housingWet, heavy snow can pack solid and stop the auger from turning.
- CommonSheared auger drive pinShear pins are designed to break to protect the gearbox when the auger hits something hard.
- CommonWorn or loose auger drive beltA slipping belt means the engine runs but power doesn't reach the auger.
- PossibleClogged discharge chuteSnow can freeze inside the chute and block the exit path.
- Less commonSkid shoes set too high or lowIncorrect height adjustment can cause scraping instead of scooping.
What to do
- Shut off the engine and disconnect the spark plug wire before clearing any clog.
- Use a clearing stick, never your hands, to remove packed snow from the auger housing and chute.
- Inspect the shear pins on the auger shaft for breaks and replace any that are sheared.
- Open the belt cover and check the auger drive belt for cracking, glazing, or looseness.
- Check chute walls for ice buildup and clear with the stick or warm water away from the engine.
- Verify skid shoe height is set per the manual for your surface.
- If the belt is intact but the auger still won't turn, the gearbox may need professional inspection.
Tools and parts
- Clearing stick or wooden dowel
- Wrench set
Snow blower shear pinsSearch: “snow blower auger shear pin kit”
Auger drive beltSearch: “snow blower auger belt replacement”
When to call a pro
If the gearbox is grinding or the auger shaft is bent, take it to a small-engine shop.
Safety
Use caution
Never clear a clog with your hands while the engine is running or even off with the blade able to move; always shut off the engine and wait for all parts to stop.