CONSUMER SAFETY ALERT

During operation the heaters can produce high levels of carbon monoxide (CO), posing a risk of serious injury or death from carbon monoxide poisoning.
Official Consumer Product Safety Recall • September 17, 2026

Hayward Industries Recalls Universal Pool Heaters Due to Risk of Serious Injury or Death from Carbon Monoxide Poisoning Hazard

This recall involves Hayward-branded HDFS400 Universal-HC Series pool heaters. The 400,000 BTU dual-fuel gas heaters are brown with black atop and measure 21 inches long, 28 inches wide and 31 inches high. The pool heaters have a digital display control panel at the top and a molded base with integrated tie-down connections. The heater's name plate is below the vent with the word "Hayward" appearing at the bottom of the name plate and the model number "HDFS400" appears at the top of the name plate.

Required Consumer Action

Consumers should stop using the infrared and hybrid saunas immediately and contact Sauna360 to schedule a free in-home repair from a professional installer.

Contact Information

Hayward Industries toll-free at 855-500-5288 from 8 a.m. to 5 p.m. ET Monday through Friday, email at HeaterInquiry@Hayward.com, online at https://www.hayward.com/productrecall or https://www.hayward.com and click on "Recall Information" for more information.

Recall Details

Sold At
Sold At:
Costco stores and pool and spa dealerships nationwide and online at Costco.com and other online sites from May 2013 through July 2026 for between $6000 and $13,000.
Injuries
The firm has received 67 reports of overheating, melting, charring or burning. No injuries have been reported.
Remedy
Repair
Recall Number
26777

Product Information

Product Name
Infrared Saunas, Hybrid Infrared Saunas and Infrared Kits
Product Type
Saunas
Number of Units
About 41,580 (In addition, about 6,758 were sold in Canada)
Imported By
Sauna360 Inc., of Cokato, Minnesota
Manufactured In
China

Register This Product

Contact Manufacturer

Use the contact information below to reach out about this recall:

Phone 855-500-5288
Full Contact Information

Hayward Industries toll-free at 855-500-5288 from 8 a.m. to 5 p.m. ET Monday through Friday, email at HeaterInquiry@Hayward.com, online at https://www.hayward.com/productrecall or https://www.hayward.com and click on "Recall Information" for more information.