Basic Troubleshooting Guide - aoyue INT 2702A+ Instruction Manual

BASIC TROUBLESHOOTING GUIDE

PROBLEM 7: AIR PRESSURE LEVEL IS SIGNIFICANTLY LOW NO MATTER HOW
HIGH THE AIRFLOW LEVEL IS CALIBRATED
Case 1: Check the mains voltage (AC power source). If the voltage level falls significantly
low, about 15-20% lower than the standard, there will also be a noticeable drop in the air
pressure level.
SOLUTION:
Please refer to your local power service provider.
Case 2: The microcontroller might have detected the operating frequency incorrectly. The
user will notice that airflow level is weaker with reference to the airflow gauge compared
with the displayed value.
SOLUTION:
Turn off the unit and on again to let the device re-detect the proper operating frequency.
Case 3: The Suction Vacuum cap is connected to the Smoke Absorber Terminal or
Vacuum cap instead of the Wire mesh cap.
SOLUTION:
Change the cap to the Wire mesh cap. This allows more air to pass through the system.
Make sure as well that the vacuum tube of the soldering iron or desoldering gun is not
connected.
Case 4: The Wire mesh cap is connected but airflow level is still low.
SOLUTION:
Check the filter pad inside for dirt that can block the air passage. Clean or replace if
necessary.
ADDITIONAL SOLUTION:
PROBLEM 8: UNIT SHOWS UNCONVENTIONAL BEHAVIOR
Description: Unit operates erratically.
SOLUTION1: Try to switch OFF the device and switch ON again. Unplug the system from
the main power source and plug in again when necessary
SOLUTION2: Restore unit to default factory setting. switch off/on the unit while holding
the hot-air temperature down button until the banner finishes scrolling, the unit would
revert to its default factory setting.
OTHER PROBLEMS NOT MENTIONED:
Contact the vendor.
22
Check for any tangles in the tube of the hot air gun
that can cause the air blockage.