Polaris Swimming Pool And Spa Air Blower
Matthew Perez
Updated on May 15, 2026
How does a pool blower work?
A hot tub fan is a device that uses a fan to create a flow of air and then directs the air through the jets of a hot tub or spa. It is sometimes called an air or bubble pump because it creates a bubble in the water (as opposed to a hydromassage jet).Do I also need a blower for my spa?
No, most spas don't have fans. The consensus seems to be that they don't add much jet and tend to bring cold air into the water, which lowers the temperature.And how do you replace a fan in a spa?
Open the access door to the spa device and find the old fan.- Turn off the spa with the switch.
- Disconnect the air duct hose from the fan outlet connector.
- Disconnect the fan power cord from the spa control block.
- Disconnect the ground wire, if present.
- Remove the mounting screws and the fan.