Troubleshooting Clogged & Dry Cartridges
A decision tree for clogs, dry hits, and weak vapor — covering airpath blockages, wicking, voltage, and storage.
Most field complaints fall into three buckets: clogged, dry, or weak. Use this decision tree to identify the cause and the corrective action — at the line or in a consumer's hands.
What's covered
- Clog diagnosis and clearing
- Dry-hit causes
- Weak-vapor checklist
Clearing a clogged cartridge
Clogs
Clogs usually trace to oil in the airpath (a fill issue) or condensed oil after cold storage. Gentle preheat and a light draw with no power often clears the latter.
Dry hits
Dry, harsh hits mean the wick isn't saturated — too little soak time, oil too thick/cold, or excessive voltage. Lower voltage and allow wicking time.
Weak vapor
Weak output points to low voltage, a depleted battery, or a partially blocked intake. Step voltage up gradually and confirm the battery charge.
Step-by-step
- 1
Identify the symptom
Classify as clogged, dry, or weak before acting.
- 2
Check the battery
Confirm charge and voltage setting first — it is the most common cause.
- 3
Preheat gently
Use short preheat cycles to mobilize thick or cold oil.
Avoid holding through a full draw — that scorches the coil.
- 4
Inspect intake & airpath
Look for oil intrusion or blockage under magnification.