The encyclopedia · Product & Design · Product decision · 1999–2026
TOTO's washlet: a 2007 recall at 81.8% repaired — the tail still fires in 2026
180,559 washlets recalled in 2007 for a plating defect that ends in fire. 81.8% got fixed; the rest kept burning — 13 fires since 2010, one more in July 2026.
TOTO · 2026-07-28
What happened
Between March 1999 and December 2001, TOTO — then Toyo Toki — shipped washlets whose controller boards carried a plating defect at the warm-water heater connector. Heat shock and vibration peeled the plating; the bad contact heated, cracked solder, broke insulation, and sparked between poles until the board burned.
On April 16, 2007, TOTO recalled 180,559 units (TCF910 to TCF975 series) for free inspection and a new controller and heat exchanger. By June 30, 2026, the repair rate stood at 81.8%. The other 18.2% kept going: 13 fires on unfixed units since 2010, one with a minor injury, logged fiscal year by fiscal year by the Consumer Affairs Agency.
On July 14, 2026, a TCF970L in Fukushima — over 20 years old, never repaired — caught fire and the agency published it again. A 19-year-old recall with an 18% tail is not a closed case; it is a slow fuse the company is still counting.
Why it happened
- The 1999–2001 boards had a plating defect at the heater connector: heat cycles peeled it, contact turned to heat, solder cracked, and the spark burned the board
- The 2007 recall fixed 81.8% by 2026 — good, and useless: the unreached tail is some 32,000 toilets nobody unplugged, firing one by one since 2010
- A washlet is a fixture, not a purchase: homes change hands, the seat stays, and the recall letter never reaches the second owner — the tail burns in houses that never got the notice
The lesson
A recall's repair rate is its real expiry date — 18% of 180,559 is a long tail of machines that outlive the campaign, and every one is a fire the company already paid to prevent.
Sources
- 消費者庁 — 重大製品事故：リコール製品で火災等（温水洗浄便座） (Jul 2026)
- 消費者庁 — 事故情報 PDF（TCF910–975、1999–2001年製、修理率81.8%） (Jul 2026)
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