Bosch shx4atf5uc 21 dishwasher error code e01 not draining — unit attempts to run a cycle but fails

Use only checks that match the exact appliance or system and its official guide.

1. Check 1

   From a safe standing position, photograph the display or indicator pattern and record the complete model as SHX4ATF5UC/21, the selected programme, where it stopped, whether the panel is lit, and whether water remains in the tub. Do not start another cycle to reproduce the fault.

   Expected result: The display reads E01 or E:01, a different E-code or light pattern appears, the tub is empty, or standing water remains.

   Next step: Match the exact E-Nr and code to Bosch's official error page or the model manual. If the pattern is not clearly E01, stop applying this branch and document the new pattern for service.

   Stop if: Stop for smoke, burning odor, sparks, a hot or damaged cord, repeated breaker trips, an active leak or water near electrical parts.

   Why this matters

   Why: The exact code and water level are separate facts. Bosch assigns different actions to heat-pump, control, fill, door and drain codes, so the task's phrase “not draining” cannot replace the observed code.

2. Check 2

   If E01 is confirmed, check the door perimeter and latch from outside, and note whether the dishwasher has power without touching hardwired connections. Make sure no rack, dish or cabinet interference prevents a normal latch; do not force the door or open the control area.

   Expected result: The door is not latched, the panel is dark, the breaker has tripped, the door and power look normal, or E01 remains on a lit panel.

   Next step: Correct only an accessible loading obstruction and document the power state. For a recurring trip, insecure latch or persistent E01, leave the unit off and arrange qualified Bosch service.

   Stop if: Do not bridge the latch, repeatedly cycle the breaker, remove panels, probe wiring or energize a wet, scorched or electrically damaged dishwasher.

   Why this matters

   Why: A door or power condition can stop a programme independently of E01. Bosch's E01 definition still points to a heat-pump motor circuit fault at the main control board when the code is genuine; a normal door and supply do not make it a drain code.

3. Check 3

   With the appliance stopped and power isolated only when it is safe to do so, determine whether water is actually standing in the tub. If water is present, allow it to cool and inspect only the user-accessible filter and visible drain path as the exact manual permits; do not open the pump, remove the base or disconnect hoses.

   Expected result: The tub is empty, water remains above the filter, the filter is visibly blocked, the visible hose is kinked, or the accessible drain path looks clear.

   Next step: Clean and reseat only the accessible filter components described by the manual. If the tub remains full or E01 returns, keep the dishwasher off and give service both observations: actual water level and E01.

   Stop if: Do not reach into a pump, use sharp tools, force an impeller, disconnect a wet hose, tilt the dishwasher or run repeated cycles with standing water.

   Why this matters

   Why: Standing water is a separate drain symptom that can result from the programme stopping before its drain stage. Bosch's drain guidance links standing water to filter, pump-cover or hose conditions, but those checks do not change the official meaning of E01.

4. Check 4

   Check the accessible water-supply valve and visible inlet route for a closed valve, kink or leak without pulling the built-in dishwasher or loosening a pressurized connection. Record whether the supply looks normal and whether the dishwasher is wet underneath or at the sides.

   Expected result: The valve is closed, the visible inlet hose is kinked or damaged, a leak is present, or the water supply and exterior are normal.

   Next step: Restore only a safe, obvious accessible valve condition. For a leak, water near electrics, hidden hose restriction or persistent E01, isolate the appliance and arrange service.

   Stop if: Do not disconnect the inlet hose, open the valve body, pull out the dishwasher, bypass leak protection or reconnect power in a wet area.

   Why this matters

   Why: Water-supply loss can make a cycle fail and can coexist with an unrelated E01 display. A normal visible supply does not clear the heat-pump motor circuit or prove a hidden pump is healthy.

5. Check 5

   Only after recording E01 and checking for immediate hazards, follow Bosch's official E01 instruction once: switch the dishwasher off, reset its breaker for 30 seconds, then restore power. Do not enter a service mode or use an unverified button combination, and do not repeat the reset if E01 returns.

   Expected result: E01 clears and the appliance responds normally, E01 returns immediately, the dishwasher remains unable to start or finish, or a different code appears.

   Next step: If the code returns or the cycle still fails, turn off water when appropriate, isolate power safely and arrange Bosch-authorized service with the exact model, code, water level and external observations.

   Stop if: Do not repeatedly reset, run a service diagnostic, remove the control board, test live voltage or order a heat-pump, control-board or drain-pump part from the code alone.

   Why this matters

   Why: Bosch presents the 30-second breaker reset as a limited first response to E01, not as a component test or repair. Recurrence supports a persistent heat-pump motor/control fault or another technical fault requiring professional diagnosis.

6. Check 6

   After the single reset or without resetting if a hazard is present, document whether the panel operates, whether the same E01 appears before or during a cycle, whether water is left behind, and whether any unusual heat, odor, noise or power loss occurs. Do not deliberately reproduce a leak, stalled motor or electrical fault.

   Expected result: The machine completes a cycle, E01 recurs at start or mid-cycle, the tub remains full, the breaker trips, or the appliance shows smoke, burning odor, sparks or abnormal heat.

   Next step: Keep the dishwasher off for a recurring code or hazard and arrange qualified service. Provide the complete E-Nr, code format, programme, stop point, water level, reset result and visible checks.

   Stop if: Do not continue operating through recurrence, leaks, smoke, burning odor, sparks, repeated breaker trips or any need for internal access.

   Why this matters

   Why: A completed cycle after one reset does not prove the underlying circuit is sound; recurrence or a hazard makes this a service boundary. The water level helps the technician separate a consequential standing-water symptom from the E01 root-code path.