The short answer
A leaking WGH washer leaks from a small number of places.
What this looks like from the kitchen
- Water tracking along the floor from behind to the front — The source is at the back and the destination is at the front, which is why the puddle position misleads so often.
- Damp inside the door seal fold with grit in it — The early stage of a seal leak, and the point at which cleaning the fold still fixes it.
- NEAR MISS - condensation under a machine in a cold room — A cold cabinet in a warm humid room makes its own water and no plumbing is involved.
- NEAR MISS - a few drops from the seal when the door opens — Normal on a front-loading machine: the seal holds a little water by design and it runs out when the door swings.
- Water only on the drain step — Timing places this at the pump housing, the drain hose or the standpipe connection.
Likeliest causes first
- Pump housing or filter seat not sealing — Very often follows a filter clean where the cap went back cross-threaded or without its seal seated.
- Drain hose out of the standpipe or clipped badly — Ranks high because a hose that has worked loose empties a full tub onto the floor rather than dripping, which is why it is so dramatic.
- Door seal torn, folded or holding debris — The fold at the bottom of the seal collects grit and hair, and that is exactly where the rubber wears through.
- Inlet hose union weeping at the tap — Under mains pressure all the time, so it leaks between washes as well as during them - a useful distinguishing feature.
The order the layout dictates
- Run the seal fold with a cloth and look for grit and tears — The inspection and the fix are often the same action.
- Pull the machine out and watch a full cycle from behind. Get a second person before you pull the cabinet out or tilt it. — Slow and awkward, it is the check that finds an internal clip.
- Note which step of the cycle the water appears on — Fill, wash and drain implicate different components, so the timing is worth more than the location.
- Dry the floor completely and lay paper towel front, middle and back — The towel that wets first names the region.
Before any panel comes off
Safety
Kill the power first. If the machine needs to come forward, walk it rather than dragging it: these cabinets carry a heavy counterweight at the top and they tip more easily than their weight suggests. Get a second person before you pull the cabinet out or tilt it.
Models in the WGH family
Reference| Model number | Family key |
|---|---|
| WGH25400AU | bosch:washer:wgh |
| WGH254A1AU | bosch:washer:wgh |
| WGH254ARAU | bosch:washer:wgh |
The line between a fix and a call
The service call starts where the wiring does. Checking a filter, a hose or a load is fine; tracing a harness behind the tub of a machine that is plumbed in is not, and a technician does it in one visit.
