Notice Regarding Free Inspection and Repairs of Our Products (Certain EcoCute Models)
CORONA CORPORATION (manufacturer of the heat-pump units: DENSO CORPORATION)
Heat-pump units (outdoor units) used in certain models of the residential natural-refrigerant (CO2) heat-pump water heater EcoCute. The products cover 3 brands, CORONA, ユーリッチ, and Toyota Home, comprising 51 models and 240,629 units subject to inspection.
It was determined that the compressor inside the unit could be damaged by corrosion caused by salt and other substances, potentially deforming the unit housing during hot-water heating operation of the heat-pump water heater.
Related procedures
Product accident report (recall) filing
Relevant authorities, including the Ministry of Economy, Trade and Industry
The impact of this matter on the Company's results is currently under review. However, it has been agreed that the manufacturer of the relevant heat-pump units will bear the costs associated with the recall response, and the impact on the Company's consolidated results is expected to be immaterial.
Company response
The compressors in the heat-pump units will be inspected for corrosion, and will be replaced with modified parts.
Free inspections and repairs will be carried out. The products may continue to be used before inspection, but customers are being asked not to approach the heat-pump unit while it is operating. The Company will address the matter across the entire organization.
If any matter requiring disclosure arises in the future, it will be disclosed promptly.
| Item | Details |
|---|---|
| Event name | Notice Regarding Free Inspection and Repairs of Our Products (Certain EcoCute Models) |
| Subject Entity | CORONA CORPORATION (manufacturer of the heat-pump units: DENSO CORPORATION) |
| Target Locations / Products | Heat-pump units (outdoor units) used in certain models of the residential natural-refrigerant (CO2) heat-pump water heater EcoCute. The products cover 3 brands, CORONA, ユーリッチ, and Toyota Home, comprising 51 models and 240,629 units subject to inspection. |
| Cause | It was determined that the compressor inside the unit could be damaged by corrosion caused by salt and other substances, potentially deforming the unit housing during hot-water heating operation of the heat-pump water heater. |
| Impact on Earnings Forecast | The impact of this matter on the Company's results is currently under review. However, it has been agreed that the manufacturer of the relevant heat-pump units will bear the costs associated with the recall response, and the impact on the Company's consolidated results is expected to be immaterial. |
| Type of litigation or proceeding | Product accident report (recall) filing |
| Court or authority | Relevant authorities, including the Ministry of Economy, Trade and Industry |
| Date of filing / date of action | 20 May 2026 (date of filing the product accident report (recall)) |
| Measures to prevent recurrence | The compressors in the heat-pump units will be inspected for corrosion, and will be replaced with modified parts. |
| Outlook | Free inspections and repairs will be carried out. The products may continue to be used before inspection, but customers are being asked not to approach the heat-pump unit while it is operating. The Company will address the matter across the entire organization. |
| Planned follow-up disclosure | If any matter requiring disclosure arises in the future, it will be disclosed promptly. |
Items this document does not state (14)
These are items the company does not state in this document. We do not leave them blank, nor fill them in from other sources or by inference.
The reasons the company gives
The company's own explanation, not something inferred from the numbers.It was determined that the compressor inside the heat-pump unit could be damaged by corrosion caused by salt and other substances, potentially deforming the unit housing during hot-water heating operation. Free inspections and repairs will be carried out to prevent accidents and enable customers to continue using the products with confidence.