The short answer
Standing water in a GV tub is a blocked path far more often than a dead pump. The seven codes in the table share the family stem and sit close together in build, so the layout described here holds across them.
What you observe on these models
- Clean water standing in the sump after every cycle — Clean water means the wash finished and the drain failed at the end.
- The machine hums at the end of the cycle but the water level does not move — The pump is being asked to run and cannot turn, or it turns against a blocked outlet.
- The cycle stops part way and the panel shows a fault — Most controls abort the cycle once the water is still there after a drain attempt.
- Water comes back into the tub after the cycle ends — That is siphoning: the drain hose has lost its high loop or the air gap is blocked, and sink water is finding its way back in.
Causes, most likely first on the GV family
- The filter and sump are packed with soil — First, and it is free to check. The filter twists out by hand; if the sump under it is holding soil, the pump has been trying to push it through and failing.
- The disposal knockout plug was never removed, or the disposal is full — Ranked second on a family this young, because it is the classic new-installation fault: the dishwasher hose was connected to a disposal whose knockout plug is still in place, and the machine has never drained properly.
- The drain hose is kinked, trapped or has lost its high loop — Third. Check it before anything electrical: a hose with no high loop siphons the sink back into the tub, and a kink behind the cabinet stops the drain dead.
- The air gap on the counter is blocked — Only some installations have one; where it exists, it is the cheapest thing on this list to clear and the easiest to forget.
- The drain pump has failed electrically, or the control is not calling it — Last. A pump that makes no sound at all when the drain step should run points at the pump winding or at the control that drives it, and either one is a service call.
Check in this order, and why
- Run the drain or cancel function first — It forces one clean drain attempt with nothing else happening, so you can hear whether the pump runs, hums or stays silent.
- Bail the tub out and pull the filter — Scoop the standing water with a cup and a towel, then twist the filter out and look in the sump with a light.
- Check the sink side before the machine side — Run the disposal, check the hose behind the cabinet for a kink, confirm the hose rises into a high loop or air gap, and clear the air gap cap if one is fitted.
- Look at the pump inlet with the power off — With the breaker off and the sump dry, the pump inlet under the sump screen is where a bone chip or a piece of glass lodges.
- Stop here if the pump is silent — A drain step that produces no sound at all, with a clear filter and a clear hose, is an electrical fault at the pump or the control — and that is where the owner-side list ends.
Models in the GV family — Each code here is pinned to a single build, so match the tag inside your door frame character for character. The seven codes fall into five leading groups, and that spread is the reason this page is written for the family rather than for one machine.
Reference| Model number | Family key |
|---|---|
| GV64 | bosch:dishwasher:gv |
| GV640WT-4,0-15BS-101014 | bosch:dishwasher:gv |
| GV642B | bosch:dishwasher:gv |
| GV65 | bosch:dishwasher:gv |
| GV650 | bosch:dishwasher:gv |
| GV650A | bosch:dishwasher:gv |
| GV650A_ZEO | bosch:dishwasher:gv |
Before you open anything
Safety
Kill the power at the breaker before your hands go into the sump or the toe-kick comes off — you are working in water, and a capacitor can hold a charge after the power is off. Bail first so you can see: glass chips sit under the filter where nobody expects them.
When to call a technician
The owner side of this fault ends at the pump inlet. Filter, sump, drain hose, air gap and disposal are all reachable with a towel and a torch, and they account for most of these calls.
Other symptoms covered for this family
SC
Sarah Chen
Lead Appliance Repair Technician · 12 years experience
EPA 608 UniversalNASTeC Certified
Experienced technician with 12 years specializing in washing machine and dryer repairs across all major brands.
