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Home › Appliances & tools › Hayward Industries Universal Pool Heaters
Product recall · CPSCSeptember 17, 2026Serious
Hayward Industries Universal Pool Heaters
The notice says to stop using it — see below for what to do.
What’s wrong
During operation the heaters can produce high levels of carbon monoxide (CO), posing a risk of serious injury or death from carbon monoxide poisoning.
The Recall Registry rates this serious — The agency describes a risk of serious injury or death.
What it looks like
Photos help. Identifiers decide. Appearance can vary by color, finish or packaging. Confirm the model number, date code or other identifier in the official notice.
Recall image provided by CPSC
What to do
Consumers should stop using the infrared and hybrid saunas immediately and contact Sauna360 to schedule a free in-home repair from a professional installer.
Who to contact: 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.
The product
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.
Details
- Units affected
- About 41,580 (In addition, about 6,758 were sold in Canada)
- Recall date
- September 17, 2026
- Brand
- Sauna360 Inc., of Cokato, Minnesota
- Injuries reported
- None reported
- What has been reported
- The firm has received 67 reports of overheating, melting, charring or burning. No injuries have been reported.
HDFS400
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.
The official notice
This recall was issued by the U.S. Consumer Product Safety Commission. The Recall Registry summarises it — always confirm the details at the source.
Their exact wording: “Hayward Industries Recalls Universal Pool Heaters Due to Risk of Serious Injury or Death from Carbon Monoxide Poisoning Hazard”
Worried about the other things in your house? You can write down what you have and be told if one is recalled — or, if you sell second-hand, check your whole stock at once.
Filed under: Appliances & tools