{"product_id":"nuwhirl-ast-201-cast-201-control-replacement","title":"NuWhirl AST-201 \u0026 CAST-201 Control Replacement | Balboa","description":"\u003cdiv class=\"whirlybros-product-description\"\u003e\n\n  \u003cdiv style=\"background:#eef8ff;border-left:5px solid #0077cc;padding:16px;margin:20px 0;\"\u003e\n    \u003cstrong\u003e✓ Whirly Bros Compatibility Verified\u003c\/strong\u003e\u003cbr\u003e\n    This upgraded Balboa control has been verified by Whirly Bros as a replacement for multiple discontinued NuWhirl AST-201 and CAST-201 electronic controls when programmed to the correct operating configuration.\n  \u003c\/div\u003e\n\n  \u003ch2\u003eNuWhirl AST-201 and CAST-201 Variable-Speed Control Replacement\u003c\/h2\u003e\n\n  \u003cp\u003e\n    Restore operation to your air bath, whirlpool tub, blower, or bath pump with this upgraded Balboa replacement control. It is designed to replace the discontinued\n    \u003cstrong\u003eNuWhirl AST-201-01-01-03D\u003c\/strong\u003e and numerous related AST-201 and CAST-201 control variations.\n  \u003c\/p\u003e\n\n  \u003cp\u003e\n    This control is especially useful when the original NuWhirl control has gone completely dead or has suffered a failed triac that leaves the connected blower or pump stuck in the ON position.\n  \u003c\/p\u003e\n\n  \u003cp\u003e\n    Unlike many original controls, the updated Balboa control includes an\n    \u003cstrong\u003eLED status indicator\u003c\/strong\u003e, supports\n    \u003cstrong\u003efour selectable operating configurations\u003c\/strong\u003e, and can be paired with an\n    \u003cstrong\u003eoptional wireless remote control\u003c\/strong\u003e.\n  \u003c\/p\u003e\n\n  \u003ch2\u003eCommon Signs the Original Control Has Failed\u003c\/h2\u003e\n\n  \u003ch3\u003eControl Is Completely Dead\u003c\/h3\u003e\n\n  \u003cp\u003eA failed AST-201 or CAST-201 control may become completely unresponsive. Common symptoms include:\u003c\/p\u003e\n\n  \u003cul\u003e\n    \u003cli\u003eThe blower or pump will not start.\u003c\/li\u003e\n    \u003cli\u003eThe air button no longer activates the system.\u003c\/li\u003e\n    \u003cli\u003eThe control box does not respond when power is supplied.\u003c\/li\u003e\n    \u003cli\u003eThe connected equipment receives no switched power from the control.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eBlower or Pump Is Stuck in the ON Position\u003c\/h3\u003e\n\n  \u003cp\u003e\n    Another common failure is a damaged or blown triac. The triac is an electronic component that switches power to the blower or pump. When it fails in the closed position, the connected motor may continue running without responding to the air button.\n  \u003c\/p\u003e\n\n  \u003cp\u003eTypical symptoms of a failed triac include:\u003c\/p\u003e\n\n  \u003cul\u003e\n    \u003cli\u003eThe blower or pump starts as soon as electrical power is applied.\u003c\/li\u003e\n    \u003cli\u003eThe motor remains running continuously.\u003c\/li\u003e\n    \u003cli\u003ePressing the air button does not turn the system off.\u003c\/li\u003e\n    \u003cli\u003eThe motor only stops after the control is unplugged or electrical power is shut off.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003cdiv style=\"background:#fff4e5;border-left:5px solid #f0a000;padding:16px;margin:20px 0;\"\u003e\n    \u003cstrong\u003eImportant Safety Notice\u003c\/strong\u003e\u003cbr\u003e\n    If your blower or pump is stuck running, disconnect power to the control box or turn off the appropriate circuit breaker. Do not allow the equipment to continue operating unattended. Electrical troubleshooting and installation should be performed by a qualified technician when required.\n  \u003c\/div\u003e\n\n  \u003ch2\u003eWhy Choose the Updated Balboa Control?\u003c\/h2\u003e\n\n  \u003cp\u003e\n    This is more than a basic replacement for an obsolete control. The updated Balboa design adds useful diagnostic and programming features that make operation and future troubleshooting easier.\n  \u003c\/p\u003e\n\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eLED power indicator:\u003c\/strong\u003e Confirms that the control is receiving electrical power.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eConfiguration indicator:\u003c\/strong\u003e The LED helps identify the currently selected operating mode.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eFour operating configurations:\u003c\/strong\u003e One control can be programmed for multiple pump and blower applications.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eField configurable:\u003c\/strong\u003e The configuration can be changed without replacing the control box.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eWireless remote compatible:\u003c\/strong\u003e An optional wireless remote can be paired with the control.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eCurrent replacement solution:\u003c\/strong\u003e Replaces numerous discontinued NuWhirl TouchStone controls.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch2\u003eFour Selectable Operating Configurations\u003c\/h2\u003e\n\n  \u003cp\u003e\n    This Balboa control supports four different operating configurations. The correct configuration depends on the type of blower or pump being controlled and the operating sequence originally used by the bathtub manufacturer.\n  \u003c\/p\u003e\n\n  \u003cp\u003e\n    The configuration can be changed at any time by following the programming procedure shown in the video below.\n  \u003c\/p\u003e\n\n  \u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;max-width:100%;margin:20px 0;\"\u003e\n    \u003ciframe src=\"https:\/\/www.youtube.com\/embed\/GRM4EzzpDdM\" title=\"How to change the Balboa bath control configuration\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" allow=\"accelerometer;autoplay;clipboard-write;encrypted-media;gyroscope;picture-in-picture;web-share\" allowfullscreen\u003e\n    \u003c\/iframe\u003e\n  \u003c\/div\u003e\n\n  \u003cp\u003e\n    If you are unsure which configuration is required, contact Whirly Bros with the complete part number from your original control label before changing the settings.\n  \u003c\/p\u003e\n\n  \u003ch2\u003eOptional Wireless Remote Control\u003c\/h2\u003e\n\n  \u003cp\u003e\n    The control can also be paired with a compatible wireless remote. This provides another way to operate the system and can be especially useful when the original air button is difficult to reach, damaged, or no longer desirable.\n  \u003c\/p\u003e\n\n  \u003cp\u003e\n    The wireless remote can be added during installation or paired later as an upgrade.\n  \u003c\/p\u003e\n\n  \u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;max-width:100%;margin:20px 0;\"\u003e\n    \u003ciframe src=\"https:\/\/www.youtube.com\/embed\/RhvUZhszkaI\" title=\"How to pair a wireless remote with the Balboa bath control\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" allow=\"accelerometer;autoplay;clipboard-write;encrypted-media;gyroscope;picture-in-picture;web-share\" allowfullscreen\u003e\n    \u003c\/iframe\u003e\n  \u003c\/div\u003e\n\n  \u003ch2\u003eCompatible NuWhirl AST-201 Controls\u003c\/h2\u003e\n\n  \u003cp\u003e\n    This Balboa control can replace the following AST-201 controls and related letter-suffix variations when programmed to the proper configuration:\n  \u003c\/p\u003e\n\n  \u003cul\u003e\n    \u003cli\u003eAST-201-01-01-02\u003c\/li\u003e\n    \u003cli\u003eAST-201-01-01-03\u003c\/li\u003e\n    \u003cli\u003eAST-201-01-01-03A\u003c\/li\u003e\n    \u003cli\u003eAST-201-01-01-03B\u003c\/li\u003e\n    \u003cli\u003eAST-201-01-01-03C\u003c\/li\u003e\n    \u003cli\u003eAST-201-01-01-03D\u003c\/li\u003e\n    \u003cli\u003eAST-201-01-01-04\u003c\/li\u003e\n    \u003cli\u003eAST-201-01-01-04A\u003c\/li\u003e\n    \u003cli\u003eAST-201-01-01-04B\u003c\/li\u003e\n    \u003cli\u003eAST-201-01-01-04C\u003c\/li\u003e\n    \u003cli\u003eAST-201-01-01-04D\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch2\u003eCompatible NuWhirl CAST-201 Controls\u003c\/h2\u003e\n\n  \u003cp\u003e\n    This control can also replace the following CAST-201 controls and related letter-suffix variations when correctly configured:\n  \u003c\/p\u003e\n\n  \u003cul\u003e\n    \u003cli\u003eCAST-201-01-01-02\u003c\/li\u003e\n    \u003cli\u003eCAST-201-01-01-03\u003c\/li\u003e\n    \u003cli\u003eCAST-201-01-01-03A\u003c\/li\u003e\n    \u003cli\u003eCAST-201-01-01-03B\u003c\/li\u003e\n    \u003cli\u003eCAST-201-01-01-03C\u003c\/li\u003e\n    \u003cli\u003eCAST-201-01-01-03D\u003c\/li\u003e\n    \u003cli\u003eCAST-201-01-01-04\u003c\/li\u003e\n    \u003cli\u003eCAST-201-01-01-04A\u003c\/li\u003e\n    \u003cli\u003eCAST-201-01-01-04B\u003c\/li\u003e\n    \u003cli\u003eCAST-201-01-01-04C\u003c\/li\u003e\n    \u003cli\u003eCAST-201-01-01-04D\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003cdiv style=\"background:#f7f7f7;border:1px solid #dddddd;padding:16px;margin:20px 0;\"\u003e\n    \u003cstrong\u003eAST and CAST Prefix Variations\u003c\/strong\u003e\u003cbr\u003e\n    NuWhirl controls may have an AST or CAST prefix while sharing the same remaining model sequence. This replacement covers both prefix styles and the applicable A, B, C, and D configuration variations listed above.\n  \u003c\/div\u003e\n\n  \u003ch2\u003eCompatibility Summary\u003c\/h2\u003e\n\n  \u003cdiv style=\"overflow-x:auto;margin:20px 0;\"\u003e\n    \u003ctable style=\"width:100%;border-collapse:collapse;\"\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n          \u003cth style=\"text-align:left;border:1px solid #dddddd;padding:10px;background:#f4f4f4;\"\u003eProduct Type\u003c\/th\u003e\n          \u003ctd style=\"border:1px solid #dddddd;padding:10px;\"\u003eElectronic bath control replacement\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003cth style=\"text-align:left;border:1px solid #dddddd;padding:10px;background:#f4f4f4;\"\u003ePrimary Replacement\u003c\/th\u003e\n          \u003ctd style=\"border:1px solid #dddddd;padding:10px;\"\u003eNuWhirl AST-201-01-01-03D\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003cth style=\"text-align:left;border:1px solid #dddddd;padding:10px;background:#f4f4f4;\"\u003eControl Families\u003c\/th\u003e\n          \u003ctd style=\"border:1px solid #dddddd;padding:10px;\"\u003eAST-201 and CAST-201\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003cth style=\"text-align:left;border:1px solid #dddddd;padding:10px;background:#f4f4f4;\"\u003eApplications\u003c\/th\u003e\n          \u003ctd style=\"border:1px solid #dddddd;padding:10px;\"\u003eCompatible bath blowers and pumps\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003cth style=\"text-align:left;border:1px solid #dddddd;padding:10px;background:#f4f4f4;\"\u003eOperating Modes\u003c\/th\u003e\n          \u003ctd style=\"border:1px solid #dddddd;padding:10px;\"\u003eFour selectable configurations\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003cth style=\"text-align:left;border:1px solid #dddddd;padding:10px;background:#f4f4f4;\"\u003eIndicator\u003c\/th\u003e\n          \u003ctd style=\"border:1px solid #dddddd;padding:10px;\"\u003eLED power and configuration indicator\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003cth style=\"text-align:left;border:1px solid #dddddd;padding:10px;background:#f4f4f4;\"\u003eRemote Capability\u003c\/th\u003e\n          \u003ctd style=\"border:1px solid #dddddd;padding:10px;\"\u003eCompatible with an optional wireless remote\u003c\/td\u003e\n        \u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\n  \u003ch2\u003eCommon Bath Manufacturer Applications\u003c\/h2\u003e\n\n  \u003cp\u003eAST-201 and CAST-201 controls may be found in systems produced for or used by manufacturers such as:\u003c\/p\u003e\n\n  \u003cul\u003e\n    \u003cli\u003eNuWhirl Systems\u003c\/li\u003e\n    \u003cli\u003eAllied\u003c\/li\u003e\n    \u003cli\u003eHydro Systems\u003c\/li\u003e\n    \u003cli\u003eJason International\u003c\/li\u003e\n    \u003cli\u003eMansfield\u003c\/li\u003e\n    \u003cli\u003eSwirlway\u003c\/li\u003e\n    \u003cli\u003eSW Corp\u003c\/li\u003e\n    \u003cli\u003eOther bath manufacturers that used NuWhirl TouchStone controls\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003cp\u003e\n    Manufacturer names are provided only to help identify the original equipment application. Compatibility should be confirmed using the original control-box part number rather than the bathtub brand alone.\n  \u003c\/p\u003e\n\n  \u003ch2\u003eInstallation and Configuration Notes\u003c\/h2\u003e\n\n  \u003cul\u003e\n    \u003cli\u003eDisconnect electrical power before removing or installing the control.\u003c\/li\u003e\n    \u003cli\u003eCompare the complete original control part number before ordering.\u003c\/li\u003e\n    \u003cli\u003eVerify that the connected blower or pump is in safe operating condition.\u003c\/li\u003e\n    \u003cli\u003eSelect the correct operating configuration before returning the system to service.\u003c\/li\u003e\n    \u003cli\u003eDo not assume the existing configuration is correct if another replacement control was previously installed.\u003c\/li\u003e\n    \u003cli\u003eInstallation should comply with applicable electrical and local building requirements.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\n  \u003ch3\u003eDoes this replace the NuWhirl AST-201-01-01-03D?\u003c\/h3\u003e\n  \u003cp\u003e\n    Yes. This Balboa control is offered as an upgraded replacement for the discontinued AST-201-01-01-03D when programmed to the proper operating configuration.\n  \u003c\/p\u003e\n\n  \u003ch3\u003eDoes it replace AST-201-01-01-04A, 04B, 04C, and 04D?\u003c\/h3\u003e\n  \u003cp\u003e\n    Yes. The AST-201-01-01-04A, AST-201-01-01-04B, AST-201-01-01-04C, and AST-201-01-01-04D variations are included in the compatible replacement family.\n  \u003c\/p\u003e\n\n  \u003ch3\u003eDoes it also replace CAST-201 controls?\u003c\/h3\u003e\n  \u003cp\u003e\n    Yes. It can replace the listed CAST-201 controls, including the A, B, C, and D suffix variations, when configured correctly.\n  \u003c\/p\u003e\n\n  \u003ch3\u003eWhat does the C in CAST mean for compatibility?\u003c\/h3\u003e\n  \u003cp\u003e\n    Original labels may use either the AST or CAST prefix. This replacement supports the applicable AST-201 and CAST-201 versions listed on this page.\n  \u003c\/p\u003e\n\n  \u003ch3\u003eWill this fix a blower or pump that will not turn off?\u003c\/h3\u003e\n  \u003cp\u003e\n    It may resolve the problem when the original control has a failed triac that is continuously sending power to the motor. The blower or pump itself should also be inspected to confirm there are no additional problems.\n  \u003c\/p\u003e\n\n  \u003ch3\u003eWill this fix a completely dead system?\u003c\/h3\u003e\n  \u003cp\u003e\n    It can restore operation when the original electronic control has failed. Before replacing the control, verify that the outlet or circuit has power and that the connected motor is not damaged.\n  \u003c\/p\u003e\n\n  \u003ch3\u003eCan the operating configuration be changed later?\u003c\/h3\u003e\n  \u003cp\u003e\n    Yes. The control supports four operating configurations, and the configuration can be changed by following the correct programming procedure.\n  \u003c\/p\u003e\n\n  \u003ch3\u003eWhat is the LED indicator used for?\u003c\/h3\u003e\n  \u003cp\u003e\n    The LED confirms that the control is powered and helps identify which operating configuration is currently selected.\n  \u003c\/p\u003e\n\n  \u003ch3\u003eCan a wireless remote be added later?\u003c\/h3\u003e\n  \u003cp\u003e\n    Yes. A compatible wireless remote can be paired with the control as an optional upgrade.\n  \u003c\/p\u003e\n\n  \u003ch3\u003eHow do I know which configuration to use?\u003c\/h3\u003e\n  \u003cp\u003e\n    Use the complete original NuWhirl control part number and the type of connected equipment to identify the correct configuration. Contact Whirly Bros before installation if you are uncertain.\n  \u003c\/p\u003e\n\n  \u003cdiv style=\"background:#eef8ff;border-left:5px solid #0077cc;padding:16px;margin:20px 0;\"\u003e\n    \u003cstrong\u003eNeed Help Confirming Compatibility?\u003c\/strong\u003e\u003cbr\u003e\n    Send Whirly Bros a clear photo of the original control-box label and the connected blower or pump. We will help confirm whether this replacement is appropriate and identify the correct operating configuration.\n  \u003c\/div\u003e\n\n  \u003cp style=\"font-size:0.9em;color:#555555;\"\u003e\n    \u003cstrong\u003eTrademark and Compatibility Notice:\u003c\/strong\u003e\n    NuWhirl, Balboa, Allied, Hydro Systems, Jason International, Mansfield, Swirlway, SW Corp, and any related product names or part numbers are used strictly for identification and compatibility reference. Whirly Bros is not affiliated with, sponsored by, or endorsed by these manufacturers unless expressly stated. This product is a replacement component and is not represented as original NuWhirl equipment.\n  \u003c\/p\u003e\n\n\u003c\/div\u003e\n","brand":"BALBOA WATER GROUP","offers":[{"title":"Default Title","offer_id":48688045982018,"sku":"AST-201-01-01-03D","price":86.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0858\/9377\/5682\/files\/balboa-water-group-default-title-nuwhirl-control-ast-201-01-01-03d-variable-speed-allied-37855926124866_7c249288-c84f-48fb-a71a-16a1188f4dab.png?v=1784392830","url":"https:\/\/www.whirlybros.com\/products\/nuwhirl-ast-201-cast-201-control-replacement","provider":"Whirly Bros","version":"1.0","type":"link"}