What is code 64 as a error message - Fisher and Paykel Washing Machines

Error 64,65,66 are related to the same problem
64. (01000000) Phase 5 and 6 - Pressure Transducer (Ptx) error frequency < 66kHz
The Motor Controller module has received signals from the water level sensor (Ptx)
below normal frequency values.
Primary Source: Motor controller module.
Action: Replace Motor Controller module.
65. (01000001) Phase 5 and 6 - Pressure Transducer (Ptx) error frequency > 90kHz
The Motor Controller module has received signals from the water level sensor (Ptx)
above normal frequency values.
Primary Source: Motor Controller module.
Action:Replace Motor Controller module.
66. (01000001) Pressure Transducer Error [Ptx
Frequency > 90 kHz