6 sourced reports, with what to check before you buy. Each one links to the page it was reported on.
1 of these reports describe a fire, explosion or shock risk.
Costly or dangerous
Xiaomi Mi Smart Space Heater emits sparks, burning smell; main board burns out after ~3 weeks (TR owner report)
A Turkish buyer reports that about three weeks after purchase the unit began throwing sparks and giving off a burning smell, and the device disappeared from the Xiaomi Home app, which the owner attributes to a burned main board. This is a documented owner-reported fire/electrical incident in the Turkish market, exactly the kind the pack tracks. The complaint also shows the practical cost: the seller refused a refund and the technical service refused to act because no serial number was on the invoice, leaving the owner with a hazardous, unrepaired unit.
What to check. If you own this unit and see sparks, a burning smell, or the heater vanishing from the app, unplug it immediately and stop using it; do not rely on the seller's return window. Buyers should keep proof of serial number on the invoice.
Xiaomi Mi Smart Space Heater emitted sparks, burning smell and burned main board after ~3 weeks
A Turkish owner (sikayetvar.com) reports that about 3 weeks after purchase, the Xiaomi Mi Smart Space Heater started emitting sparks and a burning smell, and the main board apparently burned out, causing the device to disappear from the Xiaomi Home app. The seller refused a refund because the invoice lacked a serial number, and the consumer escalated to the Consumer Arbitration Committee. This is an owner-reported fire/safety hazard in the TR market.
What to check. If a unit sparks, smells of burning, or drops off the app, unplug it immediately and stop using it. Keep the invoice with the serial number visible to preserve warranty/refund rights. This finding is a single owner report, not an official recall.
Owner reports plastic of power/switch block melting on Xiaomi Mi Smart Space Heater S
An owner of the international version (KRDNQ03ZM) reports that on inspection the plastic of the on/off switch block is visibly melting, alongside a persistent smell and a loose internal part that causes the unit to switch off when moved. Visible melting of switch-block plastic is an overheating/fire hazard signal independent of the Turkish report.
What to check. Inspect the switch block area for deformation or melting; if the plastic is softening, stop using the heater and seek service or replacement.
Xiaomi Mi Smart Space Heater power plug overheating is abnormal per manufacturer FAQ
Xiaomi's own FAQ states that a power plug that overheats is not normal and the user should unplug immediately. The user manual adds a check: after ~30 minutes, verify the plug prongs are not hotter than 55°C, otherwise try another outlet to avoid a molten plug or fire. This documents a recognized electrical/overheating risk on this model.
What to check. Check the plug temperature after the first ~30 minutes of use; if it exceeds ~55°C, stop using that outlet. Never use an extension cord (manual warns of overheating/fire risk). This is manufacturer guidance, not a recall.
Xiaomi confirms power-plug overheating is abnormal and requires immediate unplugging
Xiaomi's own FAQ states that an overheating power plug is not normal and instructs the user to unplug immediately. This is the manufacturer's own acknowledgment that plug overheating is a real failure mode on this product, and it aligns with the EU manual's instruction to check plug prongs above 55°C to avoid a molten plug or fire.
What to check. Check the plug and outlet for heat during use; if the plug gets hot, unplug and stop using the heater, and have the outlet checked.
Xiaomi EU manual warns of molten plug or fire from plug overheating and prohibits extension cords
Safety risk
The EU-market user manual explicitly ties plug overheating to a fire risk, instructing users to check the plug prongs (above 55°C) to avoid a molten plug or fire and never to use an extension cord. This corroborates the manufacturer FAQ's plug-overheating warning and documents the fire risk in the EU market.
What to check. Use a grounded 10 A outlet directly, never an extension cord, and check the plug for excessive heat after the first ~30 minutes of use.
These reports come from the pages linked under each item: owner forums, repair guides and workshops. They are not a diagnosis of any one unit, and a careful check of the one you are buying still applies.
Text from the Kriko Electric space heaters catalog, version 0.1.1, under the CC-BY-SA-4.0 license.
