What this usually means
On a Giantex washer, a loud bang during the spin is most often an unbalanced load or a machine that is not level, not a failed bearing. Objects in the pump are the next most common cause and produce a noise only during drain. A genuine drum bearing failure — a rumble that grows through the spin — is the least likely cause and the most expensive. Half of what gets called a fault on a portable machine is an installation detail — how it is levelled, how it is connected, how much you put in it.
The symptoms, and the ones that mean something else
- A rumble that grows louder as the spin speeds up — Drum bearings, which is the expensive end of this list.
- A scrape at the same point in every rotation — Something trapped between the drum and the outer tub.
- A heavy bang during the spin only — Balance or levelling, which is free to check and free to fix.
- NEAR MISS: a hum with no drum movement at all — That is a drive or control fault and belongs on the page for a washer that will not start.
What it usually is, in order of likelihood
- An unbalanced load or an unlevel machine — One heavy item, or a machine rocking on a single short foot, lets the drum knock against the cabinet at spin speed with alarming force. Ranked first on a Giantex washer: capacity is the constraint the owner forgets, and overloading produces symptoms that read like faults.
- A coin, wire or hairclip in the drain pump — Small objects pass the drum and reach the pump impeller, where they rattle or grind every time the machine drains and nowhere else. Ranked second on a Giantex washer: the drain hose is often held at the wrong height by whatever is to hand, and height decides whether it drains at all.
- Shipping bolts still fitted — Transit bolts lock the drum solidly to the cabinet, and a machine run with them in place sounds like it is destroying itself from the first spin. Ranked third on a Giantex washer: these machines are small and get asked to do full-size work, which is a cause in its own right.
The order to work in, and the reason for it
- Push each top corner in turn and watch for movement — Any rock at all is enough to turn normal spin forces into a bang.
- Note whether the noise happens only while the machine is draining — Noise tied to draining alone is the pump almost every time.
- Look at the back panel for bolts or the holes they should have left — A newly delivered or recently moved machine with an alarming noise is this until proven otherwise.
Owner-side checks, step by step
- Level the machine on all four feet and tighten the locking nuts — Then redistribute the load and run a spin with nothing else in the drum.
Tools: adjustable spanner, spirit levelAbout 25 min
- Switch off the supply, open the pump filter at the base and clear it — Have a shallow tray and towels ready: there is always water behind that cover.
Tools: shallow tray, towelsAbout 30 min
- STOP HERE if the drum has play and the spin rumble is growing — A bearing replacement is a strip-down, and on many machines it decides whether to repair at all.
Read this before you start
Safety
Unplug the washer or switch off its breaker before opening the pump filter or any panel, and close the water supply taps before moving the machine. A washer is extremely heavy and top-heavy with water in it, so never tip one that has not drained. There is always water behind a pump filter cover, so have towels and a shallow tray in place before opening it.
When this becomes a service call
Call once the machine is level, the pump filter is clear, the transit bolts are out and the drum has nothing trapped behind it — a rumble that remains is the bearing, and that is a strip-down rather than a visit. Call at once if the drum has visible play, if the machine moves across the floor during a spin, or if anything smells hot.
The closest pages to this one
The limits of this page
This page covers the Giantex washer as a class, not one family or model line. Part numbers, wiring colours, torque figures and panel fixings differ from build to build and are deliberately not here. Where a family- or model-specific page exists for your unit, that page is the more specific answer and should be read first.
Lead Appliance Repair Technician · 12 years experience
Experienced technician with 12 years specializing in washing machine and dryer repairs across all major brands.
