Fisher Paykel GWL10 top load washer Error Code 248?

Washer symptoms: power on, starts, a little water goes on, then stops, a little water, about 12 times back & forth, then stops & beeps continuously with flashing lights of 3, 5, 7 & 8

Diagnostic Mode: 1,2,3,4,5 light up (=248 Error Code, pump blocked or filter plugged) removed the pump, nothing was clogged.
Researched online try 3,5,7,8 (=43 OOB Error Code) cleaned all terminals on balance switch.

What to try next?