Goplus 3-in-1 Treadmill with Large Desk (2.25HP): problems, parts and running costs

Checked: 2026-10-21

Summary

The recurring complaints are about the belt and the paperwork rather than the motor: owners report the belt drifting sideways, slipping within days because the 40.5 × 16 in deck is short for a long stride, and one buyer reported the speed surging hard after about six months of use, which is a fall hazard and long past the 90-day warranty. [1][10] Running it costs roughly $26 a year in electricity at an assumed 500 W draw plus one $9.99 bottle of silicone oil a year — about $35.99 a year, with no app or subscription attached. [1][2][17] It is a good buy below $260 with a written warranty of a year or more, and it is not a running machine: buy a running treadmill if that is what you need. [5][7]

Common problems and fixes

Speed surging hard after about six months — a Walmart buyer of the black 3-in-1 wrote in July 2024 that the speed began surging hard after about six months of use and that the company did not give a satisfactory answer. Bring it to a safe stop, pull the power and contact the seller; lubricating the belt is not proof that the machine is safe to resume, and the 90-day limited warranty will usually have expired by then. [1][4][10]
Belt drifting to the right — an owner reported the belt drifting right, and Goplus replied in August 2026 with a check that the floor is level plus half turns of the right rear screw, slowly, at low speed, letting the belt settle. The original KBR-JK31 manual describes quarter turns and running the belt unloaded at 0.75–1.2 mph, so follow the procedure printed for your own unit instead of mixing step sizes. [1][2]
E6 error when Run is pressed — an owner posted in June 2026 that a treadmill used happily for years began showing E6 when Run was pressed. Goplus suggested lubricating and restarting, then checking for a drive or motor jam with the machine unplugged; no confirmed fix came out of that thread, and opening a motor cover puts you close to live wiring. [1]
Remote arrives without a battery — the listing ships the remote with no cell, so a new machine can look dead even though the motor and safety switch work. Open the compartment to confirm the cell size and orientation; a converted third-party guide says CR2025, but that could not be verified for the delivered hardware, and Goplus says replacement remotes are generally not sold individually. [1][14][15]
Will not start because an internal connector was left unconnected — a buyer of the matching Costway 3-in-1 found the internal right-upright cable connector unconnected after assembly, which stopped the machine starting at all. Check that connector during assembly; a missing plug is not a failed control board. [7]
Returns are not a free trial — the refund policy asks for unused, undamaged original packaging, excludes sale and clearance items and previously assembled goods, and adds a $45 repackaging fee when the original box is missing. Goplus covers 90 days against 30-day returns, while the near-identical Costway listing shows 365 days, so get the warranty length in writing on the invoice for the exact model. [4][6][7]

Parts and consumables

Silicone belt lubricant — the original manual asks for it about every 30 operating hours: lift the belt, spread oil on the deck and run the belt unloaded for about three minutes. A 4 fl oz bottle of Action Fitness 100% silicone treadmill lubricant was $9.99 at Walmart in October 2026. The manual never says how much to use per service, so nobody can promise one bottle lasts a year, and the current product list no longer carries the sample pack shown in the original spare-parts diagram. [2][3][17]
Remote battery — not included; the cell size is not confirmed for the shipped remote, and a converted third-party guide mentions CR2025. Replace it when flat; no factory remote is sold separately, so a dead remote becomes a service request rather than a cheap walk-in fix. [1][3][14]
Floor mat — optional. A Goplus 47 × 24 in PVC mat was $22.99 in Walmart’s treadmill-mat category in October 2026, but the machine measures 50.5 × 26.5 in, so that mat does not cover the whole footprint. [16][18]

Yearly running cost

Electricity is the larger line and nobody has measured this machine: at an assumed 500 W average draw while running, one hour per workday for 260 days a year comes to 130 kWh, which at an assumed $0.20 per kWh is about $26 a year. Do not read the 2.25 hp peak rating as a wall-watt figure. Lubrication adds about nine services a year at that usage (260 operating hours divided by 30), and using one $9.99 bottle a year is an assumption rather than a published dosage, so electricity plus oil comes to about $35.99 a year. There is no paid app and no subscription for the motor, the controls or the speaker; a remote battery is a sporadic extra and repairs have no published price. [1][2][3][17]

When it is a good buy

Asking prices for this configuration sit in a narrow band: Goplus sells the exact 3-in-1 at $269.99 next to a crossed-out $406.99 reference (Goplus, October 2026), Walmart lists the Goplus black at $269.99 (Walmart, October 2026), Costway lists the white version direct at $259.99 with 365-day cover, and Target lists the black Costway version at $269.99 (Costway and Target, October 2026). Below $220 delivered, with a real warranty and return authorization, is a strong deal; the $220–259 band suits moderate desk use; $260–279 is the normal asking range; $280–329 is hard to justify unless a seller adds real coverage; at $330 and up, look elsewhere. [4][7][9][10][16]

Three alternatives are worth naming:

Costway 3-in-1 with removable desk, $259.99 direct with a 365-day warranty — the better pick if that longer cover is confirmed in writing for the exact model, though the page contradicts itself, claiming 2.5HP in the headline and 2.25HP in the specification table. [5][7]
Costway 2-in-1 with dual display and no detachable desk, $219.99 — the better choice if you already own a height-adjustable standing desk and want a separate control surface, or if you sit rather than stand while walking. [11]
WalkingPad C2, $429–449 — the better choice if compact folding and walking-only use (about 1–4 mph) matter more than the built-in worktop and the 7.5 mph rating; it costs considerably more. [12]