aoyue 937 Plus Instruction Manual page 7

Problem 4. Check 5. Is the tip temperature too high?
The tip is not wet * Set an appropriate temperature.
Check 6. Is the tip clean?
* Refer to Tip Care and Use.
Problem 5. Check 7. Is the tip coated with oxide?
The tip * Refer to Inspect and clean the tip.
Temperature Check 8. Is the iron calibrated correctly?
Is too low * Recalibrate.
Problem 6. Check 9. Is the tip seized?
The tip can not Is the tip swollen because of deterioration?
Be pulled off * Replace the tip and the healing element.
Problem 7. Check 8.
The tip don't
Hold the desired
Temperature.