The short answer
A washer that will not drain is blocked far more often than it is broken, and the blockage is usually in the filter the machine provides for exactly that purpose. On this machine the first suspect is filter or coin trap clogged.
What you observe
- The drum is full and the pump makes no sound at all — Points at power, a door confirmation or a jammed impeller rather than a blockage.
- The pump runs but the water level barely moves — A restriction: filter, hose or standpipe.
- Water drains slowly and the spin never starts — The machine will not spin on a drum it has not emptied.
- NEAR MISS — water is on the floor as well as in the drum — Treat it as a leak first; a flooded floor beside a powered machine comes before anything else.
Causes, most likely first on a Simplex washer
- Filter or coin trap clogged — Once it is matted, the pump cannot draw through it however healthy the pump is. Ranked first on a Simplex washer: the machine collects debris there on purpose, so it is the first place to look.
- Drain hose kinked, or pushed too far into the standpipe — A hose crushed behind the machine stops the flow completely, and it is crushed whenever the machine is pushed back.
- Door lock or lid switch not confirming — The drum stays full and the machine looks as though the pump has died.
- Drain pump impeller jammed or the pump failed — A pump that hums and moves nothing is jammed; a silent pump has lost power or failed.
Check in this order, and why
- Open the pump filter behind the lower flap and see what comes out — Have a tray ready: it will hold several litres.
- Pull the machine out and look at the whole hose run — The hose should enter far enough not to jump out and no further.
- Note whether there is any pump sound at all — Complete silence points at the lock or the power rather than a blockage.
What an owner can safely check
- Switch off at the wall, put a shallow tray and towels under the filter, and open the cap slowly — Let it drain in stages rather than all at once, then clear the filter and check the impeller turns freely.
Tools: shallow tray, towels, gloveAbout 30 min
- Pull the machine out, straighten the hose over its whole run, and set its depth in the standpipe correctly — It must not be a tight fit in the pipe: a sealed hose siphons rather than drains.
Tools: torchAbout 25 min
- STOP HERE if the next step needs a panel off or a meter on live terminals — That is where the owner checks end and a service call begins, whatever the ranking says.
Before you open anything
Safety
Isolate the machine at the wall and shut both taps before any filter cap comes off; a capacitor can hold a charge after the power is down. The filter holds several litres, so a tray and towels go down first. The door lock and the lid switch are safety devices and are never bypassed, and a door on a drum full of water is never forced. Drain the machine before you move it: it is far heavier full than empty.
When to call a technician
Owner work is the filter, the impeller, the hose and the standpipe. A failed pump, its wiring and the control behind it are a technician's job — and if the sink and the standpipe are both slow, call a plumber instead. Age is the deciding factor: if the machine is old enough that the control board is the suspect, price the board against a replacement machine before agreeing to the work.
Nearest pages of this class
What this page does not cover
This is the generalised Simplex washer page. A family- or model-specific page, where one exists, is linked above and is the more precise answer for your unit. Left out on purpose: part numbers, connector colours, the order panels come off in, and every torque figure — a generalised page cannot be right about any of them.
Lead Appliance Repair Technician · 12 years experience
Experienced technician with 12 years specializing in washing machine and dryer repairs across all major brands.
