Whirlpool Awm8143/1 FH error with water in machine

I’ve found similar problems on other threads and gone through the advice below
Check Pressure Switch Hose is in good condition and properly connected to Tub and Pressure switch. Verify there is not a siphon problem. Verify wire harness connections to; Inlet Valves, Pressure Switch, Drain Pump, Flow Meter, and Central Control Unit (CCU). Verify Drain pump operation. remove the clean out plug on the pump and clean out all the debris in it. All seems good but error still occurs so my question is do I need a new pressure switch? Or is it something else at fault?