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Recall of Hot-Water-Circulation Ventilator-Dryer-Heater Apparatuses for Bathrooms Manufactured by Rinnai Corporation (Free Product Inspection and Parts Replacement)

Product accidents occurred in hot-water-circulation ventilator-dryer-heater apparatuses for bathrooms manufactured by Rinnai Corporation (corporate number: 2180001021323), causing the products and their surroundings to ignite.

The Ministry of Economy, Trade and Industry (METI) was informed of these accidents as serious product accidents and the Consumer Affairs Agency announced them on September 15, 2017, in accordance with Article 35 (1) of the Consumer Product Safety Act, which relates to an accident of unclear origin in a product other than a gas or oil appliance.

To prevent further accidents, on February 28, 2018, Rinnai Corporation made an official announcement on its website and other websites of retailors handing the Rinnai brands to start a product inspection and parts replacement free of charge, for the products subject to the recall.

Anyone who has purchased any of such products should contact the company as indicated below and stop operating such products for drying, sending cool air and warming purposes until the inspection finishes.

1. Nature of the accident and recurrence-prevention measures

(1) Nature of the accident

Product accidents occurred in hot-water-circulation ventilator-dryer-heater apparatuses for bathrooms manufactured by Rinnai Corporation, causing the products and their surroundings to ignite.

Three serious accident reports subject to Article 35 (1) of the Act have been submitted.
(Control Nos. A201300744, A201600160, A201700345)

As a result of its investigation, the company showed that the cause of these accidents is thought to be that the inappropriate design of the apparatuses in which a motor for the warm air-circulation fan (hereinafter referred to as the “circulation motor”) inside the bathroom was installed in a ventilation channel, causing moisture to enter the circulation motor, the control substrate in the motor to be short-circuited and cause fire, and the products to ignite.

METI investigated the accident with control number A201300744 and found that the cause of the accident is thought to be that a blower motor may cause the product to ignite since the substrate in the motor seemed to be burned out. However, the cause of the burning out could not be confirmed due to destruction of solder-mounted and other parts on a power wire. Therefore, the cause of the accident was not confirmed and it is unclear whether the accident was caused due to the product. As for the accident with control number A201600160, METI investigated it and found that an abnormal solder-mounted part with a bead core of the internal substrate of a blower motor led to soldering cracks and sparks due to the cracks and overheated, causing the product to ignite. The accident with control number A201700345 is still under investigation.

No injuries occurred in these cases.

(2) Recurrence-prevention measures

To prevent further accidents, Rinnai Corporation provided related information on its website and other websites of retailors handing the Rinnai brands on February 28, 2018, and it will provide it in newspapers on March 1, 2018, to provide inspection and parts replacement of the products subject to the recall free of charge.

2. Products to be recalled: outline of the products, product verification method, and other information

(1) Outline of the products to be recalled

Product name: Hot-water circulation ventilator-dryer-heater apparatuses for bathrooms
Manufacturing period: June 2001 to January 2009
Quantity: 33,147

Brand

Model number

Model number of remote controller

Manufacturing period

Quantity

Rinnai

HBD-3301 ACSK-J2
RBH-CJ31 K2SN

BHY-04E

August 2001 to March 2005

17,977

HBD-3301 ACSK-J2(B)
RBH:-C331 K2SN(A)

HBD-3301ACSK-J3
RBH-CJ31 K3SN

HBD-3301 ACSK-J3(B)
RBH-CJ31 K3SN(A)

HB D-3301 ACS
RBH-C331SN

BHY-04A

Toho Gas

HBD-3301 ACSK-J2

BHY-04F

August 2001 to January 2005

14,510

HBD-3301 ACSK-J2(B)

HB0-3301 ACSK-J3

HBD-3301 ACSK-J3(B)

HBD-3301 ACS

BHY-04C

HBD-3302ACSK-2

HBD-3302ACSK-2(8)

HBD 3302ACSK 3(8)

Tokyo Gas

tBD-3301ACS

-

June 2001 to January 2009

660

(2) Product verification method

Check the “brand mark” on the remote controller for your product to find the model number (Do not try to confirm the number on the body of your product inside the ceiling for its complex structure). If you find a “Rinnai” or “Toho Gas” mark on your remote controller, check the following list of the model numbers of remote controllers for the products subject to the recall.

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*Note: Please note that some remote controllers with a Rinnai brand mark (BHY-04A) or Toho Gas brand mark (BHY-04C) may be applied to apparatuses not subject to the recall.

Remote controllers with a Tokyo Gas brand mark and the model number “IBD-3301ACS” under the mark are subject to the recall. Please check the model number of your product.

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3. Actions by the company

The company will provide inspection and parts replacement of the products to be recalled free of charge.

4. Notice by the company

Website: February 28 (Wed.), 2018
Newspaper: March 1 (Thur.), 2018

5. Alert to consumers

Anyone who has purchased any of the above products should contact the company as indicated below immediately and stop operating such products for drying, sending cool air and warming purposes until the inspection finishes.

6. Contact

Contact counter

Contact counter for inspection of hot-water-circulation ventilator-dryer-heater apparatuses for bathrooms
Exclusive line for the recall: 0120-113-531 (toll free)

Service hours

Until March 11 (Sun.), 2018: From 9:00 to 19:00, everyday
From March 12 (Mon.), 2018, onward: From 9:00 to 17:00, except Saturdays, Sundays, and national holidays

Companies’ website exclusively for the recall

Release date

February 28, 2018

Division in Charge

Product Accident Information and Analysis Office, Product Safety Division, Commerce, Industrial and Product Safety Policy Group

Related website

Ministry of Economy, Trade and Industry1-3-1 Kasumigaseki, Chiyoda-ku, Tokyo 100-8901, Japan Tel: +81-(0)3-3501-1511
Copyright Ministry of Economy, Trade and Industry. All Rights Reserved.