Hi, I'm new to this group. I've searched the message archives but
haven't found anything related to my problems so thus this post.

I have a Giant LAFree Sport. When you turn it on, it just beeps
twice and all 5 (or sometimes just 1) of the LED light in
the 'dashboard' blink on and off continuously once a second. The
electric motor does not run.

Does anyone have a copy of the service manual for this bike or know
where I can get one?

Where can I buy parts for Giant E-Bikes?

I have taken this bike apart and there are no obvious burned wires or
parts. The motor runs fine when you put the 24 volts from the
battery to it directly. It passes all the diagnostic tests (both
brake handle interlocks, speed sensor, torque sensor).

Any advice on how to diagnose the problems with this e-bike?

Thank You!

Bruce