The short answer
Water left in the drum on the R line is a blockage far more often than a failed pump, and the blockage is usually in the one place designed to be opened. On this page the first question is whether water is actually standing, since that single observation halves the list. Bail the drum down before you start: every check below is easier and drier with the water out.
What an owner actually observes on the R line
- It hums at the drain step with no flow — The impeller is jammed or the pump is stalled against a blockage.
- Water siphons back in, or the machine keeps refilling — A drain hose pushed too far into the standpipe. It is a fitting fault, not an appliance one.
- NEAR MISS — it will not drain and will not unlock — That is normal: the lock stays engaged while there is water above the door line. Drain it manually and the lock releases.
The ranking for the R line, likeliest first
- The machine will not spin, so it appears not to drain — Ranked first in the case where the drum is merely wet rather than full: the pump did its job and the spin never happened, which is a lock or balance question instead.
- The pump filter or coin trap is blocked — Lint, coins and hair grips silt the filter until flow stops. It ranks here because the checks above it take even less time.
- The house drain or standpipe is restricted — A partly blocked trap takes a shower but not a washer discharge. The tell is water rising at the standpipe rather than sitting in the drum.
- The drain hose is kinked, blocked or badly fitted — Last, but it is free: pull the machine out and look before ordering anything.
The diagnostic order, and the reason for it
- First — confirm whether there is standing water at all — Sodden washing in an empty drum is a spin fault, not a drain fault, and the rest of this list does not apply to it.
- Then — bail the drum, then open the pump filter — Tray and towel first: there will be more water than you expect. Turn the filter out fully and check the housing behind it as well.
- Only then — watch the standpipe while the machine pumps — Water rising there means the house drain is the restriction. That is a plumbing job and the washer needs nothing.
- STOP here if the next check needs a panel off or a meter on live terminals — Everything above can be done with nothing dismantled; past it the checks need test equipment.
Read this before any panel comes off
Safety
Unplug the washer or switch off its breaker before removing any panel or reaching into the pump — a capacitor can hold a charge after the power is off, and the drain impeller can start without warning. Close both supply taps before disturbing a fill hose. A loaded drum is heavy: never tip or walk a machine with water still in it, and get a second pair of hands rather than levering it on the door.
When it stops being an owner job
Call when the filter, hose and standpipe are all clear and the machine still holds water, because the next step is the pump itself. On the R line, call rather than continue if the pump cannot be reached through the filter housing. Call immediately if the machine trips its breaker while trying to drain, or if water is spreading under adjacent units — a stalled pump draws heavily and gets hot.
Other faults covered for the R line
Lead Appliance Repair Technician · 12 years experience
Experienced technician with 12 years specializing in washing machine and dryer repairs across all major brands.
