Safety Recall: Rinnai Hot Water Bathroom Heater Dryer RBH-C261 Series, RBH-C333 Series, RBHM-C334 Series – Japan CAA

Published by Reclia Safety Desk | July 02, 2026

Recall Information Record

Case Number: 00000033683
Product: Hot Water Bathroom Heater Dryer RBH-C261 Series, RBH-C333 Series, RBHM-C334 Series
Brand: Rinnai
Hazards: Fire Hazard
Source: Japan Consumer Affairs Agency (CAA)

WHAT HAPPENED

Rinnai Corporation has announced a voluntary recall for certain models of its hot water bathroom heater dryer units due to a fire risk. The affected products are the RBH-C261, RBH-C333, and RBHM-C334 series. The issue stems from corrosion at the lead wire extraction point inside the fan motor, which can lead to short-circuiting and potentially cause a fire.

This recall is significant because it involves a critical safety defect in a household appliance that operates in a wet environment, increasing the likelihood of corrosion over time. The Consumer Affairs Agency of Japan has published this notice to ensure consumers are aware of the hazard and take immediate action to prevent accidents.

If you own one of the affected models, please take the following steps:

• Stop using the unit immediately and unplug it from the power source.
• Contact Rinnai’s customer service center using the contact information provided in the recall notice to schedule a free inspection and repair.
• Provide the model number and serial number (if available) when contacting the company to confirm eligibility.
• Do not attempt to repair the unit yourself, as this may void the recall coverage or cause further damage.

AFFECTED BATCHES & TARGET SPECIFICS

– **Target Model / Type:** RBH-C261シリーズ, RBH-C333シリーズ, RBHM-C334シリーズ
– **JAN Barcode:** N/A
– **Affected Serial / Lot Numbers:** N/A
– **Total Units Affected:** N/A

ADDITIONAL REGULATORY NOTES

The recall was initiated by Rinnai Corporation under the oversight of the Ministry of Economy, Trade and Industry (METI). The hazard involves corrosion of the lead wire extraction part inside the fan motor, which may cause short-circuiting and fire. The corrective action is inspection and repair. The recall start date is April 15, 2025. Management number: 00000033683.

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