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MAINTENANCE/TROUBLESHOOTING/APPLICATION EXAMPLES

Top of Support & Service > MAINTENANCE/TROUBLESHOOTING/APPLICATION EXAMPLES > An error code appears on the display of the FX-888DX

An error code appears on the display of the FX-888DX

If an alphabetic error code is shown on the display while using an FX-888DX,
please confirm the following.

Disconnect the power plug from the outlet, and start checking and taking action.
Please contact the store of purchase or Hakko's official distributor if the error does not disappear after you take the necessary action.

Display	Point to be checked / How to handle
Sensor error	Is the soldering iron plug about to be disconnected from the unit(station)? Is the soldering iron plug about to be disconnected from the unit(station)? Connect the iron plug to the unit (station) firmly. Is the heating element disconnected? Is the heating element disconnected? Measure the resistance between the sensors , and if the measured value is abnormal, replace the heating element. 【Measurement point/Normal resistance value】 Sensor (blue) : 41 to 58Ω (at room temperature)
Low temperature alarm	The error code is displayed when the tip temperature drops below the set temperature range while soldering. e.g.　Temperature setting: 350℃, Low temperature alarm setting: 50℃ It warns with an error code and sound when the sensor temperature in the tip becomes lower than 300℃. Please also check whether no poor soldering occurs due to insufficient heat when getting an error notice. Is the heating element disconnected? Is the heating element disconnected? Measure the resistance between the heaters , and if the measured value is abnormal, replace the heating element. 【Measurement point/Normal resistance value】 Heater (red) : 2.5 to 3.5Ω (at room temperature) Is the tip size suitable for the soldering object? Is the tip size suitable for the soldering object? If the tip size is too small for the soldering object, the tip temperature drops too much due to the poor thermal capacity of the tip. Click here for more information. How to select the right shape and size of the tip for micro soldering Please contact the store of purchase or Hakko's official distributor if you get in trouble with the low temperature alarm.
Zero-cross error	The station may be broken. The station may be broken. Please contact the store of purchase or Hakko's official distributor for repair.

Please contact the store of purchase or Hakko's official distributor if you cannot solve the problem by trying the above.