13. TROUBLESHOOTING GUIDE
12
Problem
The unit does not operate.
The tip does not heat up. Sensor
error or heater error is displayed.
The tip heats up intermittently.
Solder will not wet the tip.
Check
• Is the fuse blown?
Determine why the fuse blew and eliminate the
cause, then replace the fuse.
-
Is the inside of the iron short-circuited?
-
Is the grounding spring touching the heating
element?
-
Is the heating element lead twisted and short-
circuited?
• Is the power cord broken?
Replace it with a new cord.
• Is the power cord and/or connecting plug
disconnected?
Connect it.
• Is the soldering iron cord broken?
See Check for a broken heating element or cord
assembly, pg. 14.
• Is the heating element broken?
See Check for a broken heating element or cord
assembly, pg. 14.
• Is the soldering iron cord broken?
See Check for a broken heating element or cord
assembly, pg. 14.
• Is the tip temperature too high?
Set an appropriate temperature.
• Is the tip coated with oxide?
Clean the tip. (See Tip care and use, pg. 9.)
WARNING : * Disconnect the power plug before servicing.
Failure to do so may result in electric shock.
* If the power cord is damaged, it must be replaced by the manufacturer, its
service agent or similarity qualified person in order to avoid personal injury or
damage to the unit.
