Turn off the power and remove the power cord before maintenance, otherwise electric
shock may occur.
1) Unplug the power cord from the power receptacle.
2)
The fuse holder is located under the AC power receptacle. Use a slotted (–)
_
screwdriver to open the fuse holder.
3)
Replace the fuse with a new one (Φ 5*20mm 2A).
4) Put the fuse holder back in place.
5.6 Troubleshooting
Causes
Solution
Faults
Not work
Fuse blown
Power not connected
reliably
Replace the fuse (2A/250V)
Check the power connection
and plug it in
Shows“H-E”
“S-E”on display
Loose connection
The heating core is burned
or the assembly wire is
damaged
Reconnect the soldering iron
plug or replace the heating core
Reference the heating core
connection circuit
LCD display
confusion
Chip failure
Return to dealer
Unable to set
temperature
Password set
Enter password or clear it
Temperature
deviation of
soldering iron tip
Poor temperature
calibration
Recalibration
Feeding failure
Chip or motor failure
Transfer hose is blocked
or deformed
Return to dealer
Rearrange the hose and
dredge it
Button switch failure
Foot switch failure
Replace switch component or
soldering iron
Replace the Foot switch
Soldering iron tip oxidized
The temperature of
soldering iron was set
too high
Clean or replace tips
Set temperature no more than
450℃ for long use.
The soldering
iron tip can not
adhere with tin
warning
Please contact the dealer beyond the above faults.
6. How to inspection the soldering iron
4~5 ( Heater )
≈
4Ω
1~2 ( Temperature sensor )
≈
50Ω
1~6 ( feeding switch )
ON
3~soldering iron tip( Earthing) <2Ω
Check the resistance between the pins of the connecting plug as follows:
10
