Doesn't start spin - General Electric WSSH300G Front Load Washer

Your question is confusing. A washer doesn’t spin when it washes. It agitates. A washer fill with water, agitate, drain then spin water out. Please reword your question.

Mine does this if the load is unbalanced, usually when it's got heavy items in it like bath towels, mats etc. I have to stop it, open the door, rearrange the items and start the spin again.

see this causes:
It doesn't pump or spin
frozen pulley pump or belt broken pump, replace+tes the lid swithc for defective and replace.
It pumps, but doesn't spin
lid switch defective replace+coupler broker+belt defective+clutch worn+drive motor defective+transmission drive NOT shifting properly+basket drive worn :replace
It spins only with the lid closed safety reason, will not start.
see the diagram.
God bless you

see this possible causes:
t doesn't pump or spin
frozen pulley+ test lid switch
It pumps, but doesn't spin
motor coupler+ lid switch test
It spins only with the lid closed
safety, only work with lid close test. see the diagram
God bless you

not a good model number,most likely you have a broken belt as long as it starts,heats but the drum doesn't spin,if you get a buzzing sound and it doesn't start you could have something stuck in the blower wheel,the motor is jammed or the motor is bad,you can open the door,push the door switch in,spin the drum with your other hand and have someone push the start button,if it starts you have a bad motor.

If the weed **** head turns freely before starting and after started still doesn't spin, check for a broken flex shaft or damaged end.

If the water is pumping out fine you may need new shocks. But if it is slow pump the shaft on the pump is loose and causing the noise and possibly the spin issue. If it is loud when it does go into a spin (sounds like a jet engine) you have bad bearings. Big bucks to fix.

You may need a new start capacitor or fan motor.I would have the capacitor checked by a electrician and changed if needed. Good luck and thank you.

If the timer gets to the rinse cycle and stops,
Check the lid switch for continuity. If no continuity replace the lid switch.
If the timer continues through rinse and spin without doing either, replace the timer.