Trouble Shooting Guide - Hakko Electronics FM-202 Instruction Manual

11. TROUBLE SHOOTING GUIDE

Before checking the inside of the MODEL FM-202 or replacing parts, be sure to
●
disconnect the power plug. Failure to do so may result in electric shock.
● The unit does not
operate when the power
switch is turned on.
● The tip does not heat up.
The sensor error
●
played.
● Solder does not wet the
tip.
● The tip temperature is
too high.
● The tip temperature is
too low.
● The soldering iron error
is displayed.
15
WARNING:
CHECK
ACTION
CHECK
CHECK
ACTION
CHECK
CHECK
ACTION
is dis-
CHECK
CHECK
ACTION
CHECK
CHECK
ACTION
CHECK
CHECK
ACTION
CHECK CHECK
ACTION
CHECK
CHECK
ACTION
CHECK
CHECK
ACTION
CHECK
CHECK
ACTION
CHECK
CHECK
ACTION
: Is the power cord and/or the connection plug dis-
connected?
: Connect it.
: Is the fuse blown?
: Investigate why the fuse blew and then replace the fuse.
If the cause can not be determined, replace the fuse. If
the fuse blows again, send the unit in for repair.
: Is the tip inserted properly?
: Insert the tip completely.
: Is the connection cord and/or the heater/sensor broken?
: See the appropriate section of this manual regarding how
to check the connection cord and/or the heater/sensor for
breakage.
: Is the tip temperature too high?
: Set the appropriate temperature.
: Is the tip contaminated with oxide?
: Remove the oxide (see "Tip maintenance" on P. 12).
: Is the connection cord broken?
: See "Checking the connection cord for breakage" on P. 13.
: Is the entered tip identification number correct?
: Enter the correct value.
: Is the tip contaminated with oxide?
: Remove the oxide (see "Tip maintenance" on P. 12).
: Is the entered tip identification number correct?
: Enter the correct value.
: Is the other soldering iron connected? Or the MODEL
FM-2021 plug disconnected?
: Connect the MODEL FM-2021 soldering iron.