CPSC recalls Hayward HDFS400 pool heaters for CO risk

The Situation

A pool customer could be calling your desk about this heater right now. On Sept. 17, 2026, the U.S. Consumer Product Safety Commission posted Fast Track recall 26-777. CPSC says Hayward Industries recalls HDFS400 Universal-HC Series 400,000 BTU dual-fuel gas pool heaters. The recall notice says the heaters "can produce high levels of carbon monoxide".

The Facts

About 4,600 units are covered, CPSC says. CPSC says sales ran through pool distributors, builders, and service pros nationwide from March 2026 through July 2026.

Consumers should stop using the heater at once. Contact Hayward for a free in-home check and fix by a qualified tech, the recall notice says. No incidents were reported.

The units are brown with a black top. The name plate sits under the vent, with "HDFS400" at the top and "Hayward" at the bottom, CPSC says.

Business Impact

Dealer guidance, not reported news: Brief service techs and customer-service staff on the HDFS400 name plate, and remind pool-heater customers to keep working CO detectors near the equipment area until the manufacturer repair is done.

Hayward's qualified technician handles the work.

Propane Safety Pro writes emergency action plans for workplace emergencies and policies and procedures manuals covering leak calls and office duties.

Key Takeaways

• The recall covers HDFS400 Universal-HC Series dual-fuel pool heaters.
• Consumers should stop using affected heaters; Hayward offers a free in-home check and fix.
• Keep the recall notice available to service techs and customer-service staff.

Action Steps

1. 1.Put the model number and a copy of the recall notice on a desk sheet.
2. 2.Remind pool-heater customers to keep working CO detectors near the equipment area until the repair is done.
3. 3.Direct affected customers to Hayward for the manufacturer repair.

Competitive Advantage

Keep the official recall notice at the desk so staff can refer to its description and repair instructions during a call.