Machine was operating well and pump started making noise and losing all power. Did troubleshooting and replaced pump with another domestic (USA) rebuild. Pump is still making noise and machine has no power, but does not bog down. Code E233 Disconnection in F pump TVC solenoid system comes and goes. Pumps that were pulled off were reinstalled on another machine and function well. Making me think it is not pumps, or solenoids on pumps. Pump only makes noise when a function is engaged. Any ideas? Trace the wire for code e233? some other hydraulic obstruction? Pump pressure is erratic on gauges when functions are activated.
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