If your tub has an old air system, you can definitely update your spa with digital controls. While they’re still available, most air systems have been replaced by digital controls. These pneumatic switch type controls were used on the early tubs of the 1970’s through 1990’s. Non-digital air systems have buttons that send a puff of air to switches, turning each function on or off. When any issues arise, Error Codes will display. The control keypad on top of the spa allows communication with the control pack. The circuit board inside can run sophisticated filtration cycles and onboard diagnostics. There are two types of control systems used in hot tubs: electronic, digital type systems and older-style mechanical air controls.ĭigital controls are solid state computer-controlled systems. This nerve center controls the functions and equipment in the spa, like the jet pumps, filtration time, and heater. The control system, or spa pack, is the brain of the hot tub. Shut off electrical power to the hot tub or pool at the service panel prior to any inspections or work. Electrical wiring and repairs can be dangerous, especially around water, and must be performed by a qualified electrician or spa technician.
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