Nozzle blockage in the air shower: Troubleshooting steps + Solution
1. Determine if the nozzle is blocked
Any of the following conditions indicates a nozzle blockage:
Some nozzles have very little or no airflow, while others are normal
The airflow is uneven, skewed, or intermittent
The noise in the air shower increases, and the airflow becomes significantly weaker
The filter was just replaced, but the airflow still cannot be increased
2. Safety prerequisite (must be done first)
Turn off the power supply of the air shower
Turn off the fan
Open the door to allow the equipment to completely stop running
3. Steps for nozzle blockage handling (standard procedure)
1. Locate the blocked nozzle
Examine one by one:
No airflow, weak airflow, skewed airflow indicates a blockage
Pay special attention to the top, corners, and inner side nozzles, where dust is most likely to accumulate
2. Remove the nozzle (most are screw-type)
Hold the nozzle and rotate counterclockwise to remove it
Do not use brute force to pry, to avoid damaging the base
3. Clean the blockage
The most effective and commonly used three methods are:
Air compression blowing (recommended)
Blow from the air intake side to the air exhaust side to remove dust, flocs and small particles
Clear water rinse
Rinse with tap water， dry it before reinstalling
Soft bristle brush light brushing
Brush off stubborn dust adhering to the inner wall， do not use steel wire brush， as it will scratch the inner wall
4. Check if the airflow passage of the nozzle is also blocked
Some cases are not nozzle blockage， but the airflow passage inside the nozzle base is dusty：
Use air compression to blow deeply into the base airflow passage
Ensure the airflow passage is unobstructed before reinstalling the nozzle
5. Reinstall the nozzle
Align and rotate clockwise to screw in
Make sure there is no air leakage or loosening
4. Verify after cleaning
Close the door → Start the air shower
Observe all nozzles：
The airflow is uniform， strong， and straight
There is no skewing or weak airflow
Confirm that the airflow of the air shower has returned to normal
5. Prevent nozzle blockage again (key)
Monthly inspection / cleaning of the primary filter
Regular replacement of the high-efficiency filter based on pressure difference
Dust the items entering the air shower first to reduce fibers and dust from being brought in
Simple visual inspection of the nozzles once a week， handle weak airflow immediately if found