Symptoms
- No suction at the nozzle even though the motor runs strong
- Rattling or whistling sound from inside the hose
- Suction returns briefly then drops again
- Debris visible stuck at a bend in the hose
Likely causes
- CommonSolid debris (rag, large chip, toy) lodged inside the hoseLarger objects can get pulled partway in and jam at a bend or fitting.
- CommonWet debris dried and hardened inside the hoseDamp material left in the hose can cake and block airflow once dry.
- PossibleHose kinked or crushedA sharp bend or something resting on the hose restricts airflow just like a clog.
- Less commonDebris stuck at the wand or attachment connectionClogs often sit right at a fitting rather than mid-hose.
What to do
- Turn off and unplug the vacuum, then disconnect the hose from both the tank and any attachment.
- Hold the hose up to a light and look through it for a visible blockage.
- Push a broom handle, garden hose, or plumbing snake gently through the hose from one end to dislodge the clog.
- Run water through a wet/dry-rated hose afterward if the clog was caked-on debris, then let it dry fully before reuse.
- Check the wand and nozzle attachments separately, since clogs often hide right at these connection points.
- Straighten any kinks and avoid running the hose sharply around obstacles during use.
- Reconnect everything and test suction before returning to the job.
Tools and parts
- Broom handle or plumbing snake
- Garden hose (for rinsing, if applicable)
Replacement shop vac hoseSearch: “shop vac hose replacement correct diameter”
When to call a pro
Not a professional repair; replacing an old or repeatedly clogging hose is usually simpler than continued troubleshooting.
Safety
Generally low risk
Generally low risk for a careful person. Stop if anything looks different from what this guide describes.