More than 23,000 hot tubs are being recalled because the temperature sensor may not reflect the true heat of the water.

A voluntary recall has been issued by Sundance Spas for 23,700 hot tubs over an issue related to their temperature sensors, the CPSC said on Thursday.

The United States Consumer Product Safety Commission announced a recall for approximately 23,700 Jacuzzi hot tubs and Sundance Spas brand spas.