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Washing machine not draining? Five checks before you call an engineer

1 July 2026 · 4 min read · GS Appliance Ltd

A washing machine that finishes the cycle full of water is one of the most common calls we get at the GS office. Sometimes it needs an engineer — but a surprising number of drainage problems can be spotted (and occasionally solved) in ten minutes without tools. Here's what we'd check first.

1. The filter

Almost every washing machine has a small filter behind a flap at the bottom front of the machine. Coins, hair grips, bra wires and general fluff collect there, and a blocked filter is the single most common cause of a machine that won't drain.

Put a shallow tray and a towel down first — there will be water. Unscrew the filter slowly, let it drain, pull out anything that shouldn't be there, and screw it firmly back in.

2. The drain hose

Pull the machine out gently and check the corrugated hose that runs to your standpipe or under-sink connection. A kinked, squashed or frozen hose stops water just as effectively as a blockage inside the machine.

3. The sink connection

If your machine drains into the kitchen sink trap, the little spigot it connects to can block with fat and food debris. Disconnect the hose (tray and towel again) and check whether the connection itself is clear.

4. The cycle you used

Some programmes — delicates, handwash, anti-crease — deliberately hold water or finish without a full-speed spin. Before assuming a fault, run a drain-and-spin programme and see if the machine empties normally.

5. The noise it makes

Listen at the end of the cycle. A healthy drain pump has a steady hum. Silence usually points to a failed pump or an electrical fault; a loud rattle often means something is caught in the pump impeller. Either way, that's the point to stop and book an engineer — running a jammed pump can burn the motor out.

When to call us

If the filter and hoses are clear and the machine still won't drain, the fault is usually the pump, the pressure switch or a blockage deeper in the sump — jobs where trained hands and the right parts matter.

Most washing machine repairs we do are a single one-off labour charge with any parts on top, covered by the GS Repair Guarantee: three months' cover on the same fault.

Need a hand with yours?

We cover Colchester, Ipswich, Chelmsford and the surrounding Essex and Suffolk area, with same and next-day visits often available.

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