I have a Doosan B20T-5 Electric with intermittent Trouble codes F3 Inverter Fault and F6 R motor offline. Does one cause the other to pop up or what causes this codes to display? Also, I know that this lift has a D/D Converter. Is this the same as the inverter? A little help please.
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The Power Inverters are located in the back panel, and yes for that model there are 3 power inverters, two traction and one pump. I would suggest you check the power inverters with Ohm meter from Batt+ post to then UVW terminals and check resistance. The do the same tests from Batt- connector to all three phases.
we are having the same issue any solution
A little update here. I've been doing a little research and this is what I've found about this piece of equipment;
F3- Inverter Fault actually means drive right module desat/overcurrent
F6- R Motor Offline actually means drive right motor current offset
Also found out that this F/L has 3 inverters - one for each drive motor and one for the pump motor. So, I believe that the right inverter may be defective (F3) and causing the F6 code.
Just gotta find out where the inverters are located and I should be good to go.
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