The short answer
On a LG washing machine, a noise that was not there before usually comes down to a loose rotor bolt rather than anything deeper in the machine: a rotor working loose on a direct-drive machine ticks metallically in exact time with the drum. That keeps it an owner check first, not a service call. Start here: reach in and turn the drum by hand, because on a direct-drive LG the motor is the drum bearing's nearest neighbour and the two are told apart by feel.
What you are seeing
- A rumble that rises with the drum as the spin speeds up
- A metallic tick exactly in time with the drum
- A hard bang on the spin ramp only
- A grinding heard only while the drum turns
- Not this fault: A hum with no drum movement at all, which is a drive fault
- Not this fault: A noise present with the machine switched off, which is coming from the plumbing
- Body: LG builds this washing machine as a direct-drive rotor and stator bolted to the rear of the tub with no belt, a bellows door boot and a drain-pump filter behind the lower panel. That architecture decides which of these you see first.
- Also check note: If these fit better, the fault is a different one.
Likely causes, in order
- A loose rotor bolt — Why this rank: The LG rotor bolt backs off and the rotor then knocks against the stator, a metallic tick that tracks drum speed exactly.
- A failing tub bearing — Why this rank: An LG front-load carries the drum on a rear bearing behind the rotor, so a failed bearing rumbles on spin and lets the rotor rub.
- A coin or wire trapped outside the drum — Why this rank: An LG passes coins through the drum holes into the gap outside it, where they grind against the tub on every rotation.
- Worn shock absorbers — Why this rank: The LG tub hangs on springs with dampers.
- A loose counterweight — Why this rank: The LG counterweights bolt to the tub front and back.
- Body: Ranked for a LG washing machine specifically.
What to check, in order
- Body: The order follows the ranking, and the ranking follows the platform. First: look for a bright ring of fretting round the centre rotor bolt. It goes first because the LG rotor bolt backs off and the rotor then knocks against the stator, a metallic tick that tracks drum speed exactly. Second: turn the drum by hand with the power off and listen at the rear. With the first check clean, this is what the LG platform makes next most likely. Third: turn the drum slowly by hand and listen for a scrape at one point in the rotation. Only after those three is it worth reaching for worn shock absorbers: it costs more to get at, and it does not explain the first three coming back clean.
Checks you can make
- With the machine unplugged, spin the drum by hand and listen at the rear. A dry grinding that follows the drum is the rear bearing; a light metallic tick that stops instantly is the rotor bolt. — Tools: none — Time: about ten minutes
- With the machine unplugged, turn the drum slowly by hand through several full turns and listen at the rear panel. A continuous dry rumble is a bearing; a distinct click at one point is an object. — Tools: none — Time: about ten minutes
- Remove the rear service panel and check the centre rotor bolt for witness marks around it. A bright ring of fretting means it has been working loose. — Tools: socket set — Time: about twenty minutes
- Open the flap at the lower front, place a shallow tray under the filter, unthread it slowly and let the water out. Clear the filter and check the cap seal face before refitting. — Tools: shallow tray, towel — Time: about fifteen minutes
- Body: Stop at the first step that would need a meter on live terminals or a sealed assembly opened.
Before you open anything
Safety
Switch the machine off at its breaker or unplug it before opening anything, and shut the water supply if the fault involves water. Unplug the appliance or switch off its breaker before removing any panel. A capacitor can hold a charge after the power is off. These machines are heavy and move when they are worked on. Get help before tilting or walking one out, and never put a hand under a raised cabinet. Water and a heavy electrical appliance share the same floor in a laundry room. Dry it before you kneel on it.
When to call
The line is not difficulty, it is what the next step costs and risks. Call when: a rumble on spin that has become loud enough to hear from another room
Nearest pages
What this page omits
This is generalized information: it ranks causes for the LG washing machine range as one platform, not for a single model. Where a page exists for your specific model it is the more specific one and takes precedence over this. The narrower pages below cover the other presentations of this symptom.
Entries: - [LG Washer: Electrical, Fire or Gas Hazard](/blog/lg-washer-electrical-safety)
Lead Appliance Repair Technician · 12 years experience
Experienced technician with 12 years specializing in washing machine and dryer repairs across all major brands.
