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25. TROUBLE SHOOTING GUIDE
Before checking the inside of the HAKKO FR-702 or replacing parts, be sure to disconnect the power plug.
WARNING
CHECK : Is the power cord and/or connecting plug disconnected?
ACTION : Connect it.
CHECK : Is the fuse blown?
ACTION : Determine why the fue blew and eliminate the cause, then
replace the fuse.
a. Is the inside of the iron short-circuited?
b. Is the grounding spring touching the heating element?
c. Is the heating element lead twisted and short-circuited?
Try replacing the fuse even if the cause cannot be identified.
If it still blows, return the product for repair.
CHECK : Is the cord assembly broken? Is the heating element/
sensor broken?
ACTION : If the cord assembly is broken, replace the HAKKO FX-8801.
If the heating element / sensor is broken, replace the heating
element.
CHECK : Is the heater broken?
ACTION : If the heater is broken, replace the heating element.
CHECK :
Is the setting value for the low-temperature alarm tolerance too low?
ACTION : Increase the setting value.
CHECK : Is the cord assembly broken?
ACTION : If the cord assembly is broken, replace the HAKKO FX-8801.
CHECK : Is the tip or nozzle temperature too high?
ACTION : Set an appropriate temperature.
CHECK : Is the tip coated with black oxide?
ACTION : Remove the black oxide. (Refer to “Tip Maintenance.”)
CHECK : Is the tip or nozzle coated with black oxide?
ACTION : Remove the black oxide. (Refer to “Tip Maintenance.”)
CHECK : Is the iron temperature adjusted correctly?
ACTION : Perform the temperature adjustment.
CHECK : Is the tip seized? Is the tip swollen because of deterioration?
ACTION : Replace the tip and the heating element.
CHECK : Is the iron temperature adjusted correctly?
ACTION : Perform the temperature adjustment.
CHECK : Is the power supply cable or connection plug disconnected?
ACTION : Connect it tightly.
CHECK : Is the heater tube or nozzle clogged?
ACTION : Clean it.
CHECK : Is the filter pipe full of solder?
ACTION : Clean it.
CHECK : Is the ceramic paper Filter (L) hardened?
ACTION : Replace it with a new one.
CHECK : Is there a vacuum leak?
ACTION :
Check the connections and filter pipe seals and replace any worn parts.
CHECK : Is the heater tube or nozzle clogged?
ACTION : Clean it.
● Nothing happens when the power
switch is turned on.
● The heater lamp lights up but the tip
does not heat up. (Soldering iron)
● The Heater-error is displayed.
(Soldering iron)
● The tip heats up intermittently.
(Soldering iron)
● Solder does not wet to the tip or
nozzle.
● The tip or nozzle temperature is too
low.
● The tip can not be pulled off.
(Soldering iron)
● The tip or nozzle doesn’t hold the
desired temperature.
● Pump does not operate. (Desoldering
Tool)
● Solder is not being absorbed.
(Desoldering Tool)
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