The short answer
Start with a mechanical timer or a worn selector: on Marathon washers it outranks a drain that cannot clear the tub in time, and both come a long way before control board, relays and wiring. On a long-serving machine the ranking leans towards what wears — seals, mounts, hoses and switches — rather than towards anything with a circuit board in it. Most of what follows is owner-checkable, and the point where that stops is stated plainly below.
What you observe
- It stops with water still in the drum — The machine has reached the drain step and cannot clear the tub in the time it allows.
- It goes quiet part-way with the panel still lit — A lit panel with no movement is the control waiting, not the control dead.
- The cycle finishes but the clothes are soaking — That is a spin that was attempted and given up on, not a cycle that failed to run.
- NEAR MISS — there is water on the floor as well — Read the leak page first. On many machines a leak detected under the base stops the cycle on purpose.
Causes, most likely first on Marathon
- A mechanical timer or a worn selector — On machines of this generation the cycle is a physical sequence rather than software. A cycle that always stops at exactly the same point on a timer-driven machine is a strong indication that it is the timer, not the plumbing. Top of the list for this brand, and age is what puts this in play: a timer-driven cycle can park on a worn contact in a way an electronic one cannot.
- A drain that cannot clear the tub in time — Next, and close behind the first: the drain is where cycles stop, and it is also the cheapest thing here to exclude completely.
- The door lock losing confirmation mid-cycle — Mid-cycle lock faults are intermittent by nature. Third, once the two above are clean: this sits where it does because the evidence for it is the absence of the pattern every other cause leaves behind.
- Control board, relays and wiring — A relay that no longer closes reliably, or a harness chafed where it passes a moving part, will interrupt a cycle at no particular point. Placed there because it ranks last because it is what gets replaced when the pump filter was never opened.
Check in this order, and why
- First: Does it always stop at exactly the same point? — The same point every single time, with a clear drain, points at the timer rather than at the plumbing. It is first because it is the cheapest of the three to settle.
- Second: Open the pump filter and check the hose run — With the washer unplugged, have a tray ready; the chamber holds water. Then look behind the machine for a kink.
- Third: Does it stop at different points each time? — A random stopping point with a clear drain and a balanced load points at the lock circuit.
What an owner can safely check
- Clear the pump filter and straighten the drain hose — Empty the filter chamber into a shallow tray, then check the hose for kinks and its height at the standpipe.
Tools: shallow tray, towelAbout 25 min
- Spread the load evenly and run a spin-only cycle — Separate anything that has roped together and spread it around the drum before restarting.
About 15 min
- STOP HERE if the next step needs a meter on live terminals — That is the line between an owner check and a service call, and it is not worth crossing.
Before you open anything
Safety
Unplug the appliance or switch off its breaker before removing any panel, and treat every capacitor as still charged: a capacitor can hold a charge after the power is off. Never defeat the lid or door interlock to make a machine run with the door open — it cuts the drive for a reason, and a turning drum does not stop for a hand.
When to call a technician
Everything above that can be done with a tray and a towel is owner work; past that it is a service call. In particular, do not start replacing parts on a machine that stalls at a different point every time — that pattern points at the control side, and guessing at boards is how a cheap repair becomes an expensive one.
Nearest pages of this class
What this page does not cover
This is generalized information for Marathon washers as a class, not for one family or one model. No family- or model-specific page for this brand and appliance is published here yet, so nothing narrower is linked; when one is, it becomes the more specific answer and this page will point to it. Deliberately absent: part numbers, wiring colours and the order the panels come off in — those belong with a named family.