Doosan (& Daewoo) B18T-2:
Daewoo B18T-2 Error code F5

I have a problem with my "Daewoo B18T-2"(FFT5000 BJ 2001) first I got the error FA and then blown out the device and all the plugs solved and put back together. That helped me in most cases :) but then I got the error code F5. Unfortunately I have no documentation about my truck maybe someone have suitable documents for me?

  • Posted 14 Sep 2018 15:25
  • Modified 15 Sep 2018 00:03 by poster
  • Discussion started by Sheppard
  • Germany
Showing items 1 - 4 of 4 results.
Bad wiring, DTR1 defect, Current limit set to low, Defective DD2/DD2, defective driver board, defective current sensor or failed logics.

My expierence is that F5 is usually a defective transistor due to a bad drive motor> higher resistance of the motor and power cables (or bad carbon brushes, damaged collectors) lead to excessive currents wich could lead to faulty transistor (DTR1).
Also wise to check the setting of the current sensor, they can be adjusted with a small internal potmeter.

Lots of options...
  • Posted 4 Feb 2021 01:00
  • Reply by Speedfreak
  • Niederlande, Netherlands
F5 i don´t know.
Anyone means what is FS error in the display of B18T?
best regards
a little update, the error is gone and comes only every few days.

Error code F5 (not flashing)
Any one has a manual?
  • Posted 25 Sep 2018 23:17
  • Reply by Sheppard
  • Germany
FA Fault, is steer angle problem.
F5 is left drive motor no voltage or loose wiring. Possibly no voltage to transistor
F5 flashing is same as above but right motor
assure all connections are clean and tight
  • Posted 15 Sep 2018 00:59
  • Reply by tom_p
  • Alberta, Canada

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