Your GE GDT665SSN2SS dishwasher displaying an "H2O" error and halting mid-cycle indicates an issue with the water supply or related components. Here’s a structured approach to troubleshoot and potentially fix the problem:
Understanding the H2O ErrorMeaning: The "H2O" error typically points to a problem with the water intake, suggesting that the dishwasher isn't filling with water as expected.
Initial ChecksWater Supply: Confirm that the water supply valve under the sink is fully open.Hose Kinks or Blockages: Ensure there are no kinks or blockages in the water supply hose.
Water Control Valve ReplacementRecent Replacement: You mentioned replacing the water control valve, and the dishwasher worked for 4-5 loads.Recheck the Valve: It's possible the new valve might be faulty or not installed correctly. Double-check the installation.
Investigating FurtherWater Inlet Issues: If the dishwasher attempts to fill but can’t, inspect the water inlet for any clogs or debris.Float Switch: The float switch, which detects water level, might be stuck or malfunctioning. Ensure it moves freely and isn’t obstructed.
Electrical ConnectionsWiring and Connections: Check for any loose or damaged wires leading to the water control valve and other related components.
Advanced DiagnosticsError Codes: Since the display isn’t showing any specific error codes after the initial "H2O", it might require diagnostic mode to read hidden error codes. Refer to the dishwasher’s manual for instructions on entering diagnostic mode.
Professional AssessmentWhen to Call a Technician: If these steps don’t resolve the issue, or if you're uncomfortable performing them, it’s advisable to contact a professional appliance repair technician. They can provide a more thorough diagnosis and repair.
Regular maintenance and checks can prevent future issues. Always ensure the dishwasher is disconnected from power before attempting any DIY repairs for safety.