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Appliance Error Codes

Error Code E2 on Toshiba DWS-22AHK Dishwasher | Causes & Fix

Error E2 on Toshiba : Drain fault — machine failed to drain within the allowed time. Follow the troubleshooting steps below to diagnose and fix this dishwasher issue. ## What Error Code E2 Means on a Toshiba DWS-22AHK E2 indicates the dishwasher failed to drain the wash water within the programmed drain timeout. The control board monitors drain pump current to confirm drainage. If the sump water level does not drop to the empty threshold, E2 is raised. On DW-14F series dishwashers the drain pump activates at the end of each pre-rinse, main wash, and final rinse phase. A partially blocked sump filter will not produce an immediate E2 — the fault appears when the blockage is severe enough to prevent the sump emptying within the programmed drain timeout. Toshiba recommends cleaning the sump filter after every 10 to 15 wash cycles to prevent progressive blockage that eventually triggers E2. ## Symptoms - E2 displayed on the digital panel

  • Wash cycle paused or halted
  • No water entering, no draining, or no heating as expected ## Common Causes - Drain hose kinked or standpipe height incorrect (max 90 cm)
  • Drain pump impeller blocked by food debris, broken glass, or a label
  • Drain pump motor winding failed (OL)
  • Sump filter clogged with accumulated food soil
  • Air gap (if fitted) blocked ## Tools You May Need - digital multimeter
  • Phillips screwdriver
  • narrow-nose pliers ## Step-by-Step Repair Guide | Step | Action | Result | |------|--------|--------| | 1 | Remove the lower basket and unscrew the sump filter assembly at the base of the wash chamber. Clean thoroughly under running water. | Sump filter cleaned. | | 2 | Inspect the drain pump impeller via the sump housing after removing the filter. Remove any debris blocking the impeller. | Impeller cleared. | | 3 | Check the drain hose routing: no kinks, and the standpipe height does not exceed 90 cm from the floor. | Drain hose confirmed. | | 4 | Unplug the dishwasher. Disconnect the drain pump motor connector and measure resistance — expected 170–250 Ω. OL confirms a failed pump. | Pump motor tested. | | 5 | Replace the drain pump if motor winding has failed. Restore power and run a short Rinse programme to confirm E2 clears. | E2 cleared. | ## Safety Precautions Unplug the dishwasher before accessing the sump or testing the drain pump. Residual hot water in the sump can cause burns — allow the appliance to cool before draining manually. ## When to Call a Technician Contact a Toshiba authorised service technician if: the fault persists after replacing the identified component; if PCB-level or refrigerant-circuit work is required; or if you are not comfortable working with electrical components. ## Frequently Asked Questions ### Is it safe to keep using my Toshiba with error E2? If error E2 does not indicate an immediate safety hazard such as a gas leak, electrical short, or water flooding, you can continue limited use while monitoring the appliance. However, running the dishwasher with an active error code increases the risk of further damage. Address the underlying issue as soon as possible. For high-severity errors, disconnect the appliance and contact a qualified technician. ### How much does it cost to fix error E2 on a Toshiba ? Repair costs for error E2 on the Toshiba dishwasher depend on the root cause. DIY fixes such as cleaning filters, resetting the unit, or reconnecting loose wires cost nothing beyond basic tools. If a component replacement is needed, parts and labor from a certified technician are the main expenses. Contact a Toshiba-authorized service provider for an accurate estimate based on your specific situation. ### What does error code E2 mean on a Toshiba dishwasher? Error code E2 on Toshiba dishwasher models indicates Drain fault — machine failed to drain within the allowed time. This error is detected by the appliance’s internal diagnostic system and displayed to alert the user that attention is needed. Refer to the troubleshooting steps above for guidance on resolving this issue. ### Is it safe to keep using my Toshiba with error E2? If error E2 does not indicate an immediate safety hazard such as a gas leak, electrical short, or water flooding, you can continue limited use while monitoring the appliance. However, running the dishwasher with an active error code increases the risk of further damage. Address the underlying issue as soon as possible. For high-severity errors, disconnect the appliance and contact a qualified technician. ### How much does it cost to fix error E2 on a Toshiba ? Repair costs for error E2 on the Toshiba dishwasher depend on the root cause. DIY fixes such as cleaning filters, resetting the unit, or reconnecting loose wires cost nothing beyond basic tools. If a component replacement is needed, parts and labor from a certified technician are the main expenses. Contact a Toshiba-authorized service provider for an accurate estimate based on your specific situation. ### What does error code E2 mean on a Toshiba dishwasher? Error code E2 on Toshiba dishwasher models indicates Drain fault — machine failed to drain within the allowed time. This error is detected by the appliance’s internal diagnostic system and displayed to alert the user that attention is needed. Refer to the troubleshooting steps above for guidance on resolving this issue.