I would like to express how excellent this company is. I inherited a house with a 2007 Hotspring Aria hot tub. The spa hasn’t been operated in years and when I turned it on, it ran for about 10 minutes and died. I mean dead died. I knew absolutely nothing about hot tubs but with the excellent diagnosis videos, installation videos and superior phone support, I was able to replace the main control board, heater relay board, heater, circulation pump, the ozonator and all associated tubing. This took 4 1/2 hours over two days (I had to watch videos) but the spa runs like new! I had one question regarding the jumper voltage 18 or 12. I spoke with a technician and he was able to answer my question as well as helping me double check the voltages for the components on the relay board. I am handy with electronics and electricity and am comfortable working with 230 volts. Shipping was fast and as expected. I highly recommend BackYardPlus.On 06/28/2024 by F. R. (verified customer)
These control boxes and their circuit boards do on occasion just grow tired as any outdoor computer could. No worries, we have just the right complete factory replacements as well as the internal parts all from the makers of Hot Spring, Tiger River, Solana, Limelight, and Hot Spot Spas.
Showing 1–30 of 41 results
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Replaces the obsolete 39525 and obsolete 39204 Newly designed and includes o-ring This high-limit thermistor sensor is a safety device designed to communicate with the system to shut down the heater if the water temperature exiting your heater exceeds 118 ...read more
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Sku: 79006
Thermistor, Control Thermostat, Watkins No Fault Heater, Hot Spring, Tiger River and Limelight
Replaces the obsolete 39530 and obsolete 39205 Newly designed and includes o-ring This control thermistor is a safety device that measures the water temperature of your spa and communicates that temperature reading to the Motherboard It simply screws ...read more -
Replaces 38415 Newly designed and includes o-ring This control thermostat thermistor sensor detects the spa waters temperature and relays that information back to the system It simply screws into the No Fault Heater Housing (hand tight only) and plugs ...read more
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Replaces 38416 Newly designed and includes o-ring This high-limit thermistor sensor is a safety device designed to communicate with the system to shut down the heater if the water temperature exiting your heater exceeds 118 degrees F It simply screws ...read more
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This newly designed high limit thermistor replaces the original black plastic-tipped version It is a safety device that will shut down power to the spa if the water temperature exiting the heater is too hot This would indicate a "low water flow" condition ...read more
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This Control Thermostat Thermistor communicates the actual water temperature to the controller (control box motherboard) to shut off the heater when the spa reaches the target temperature It is used on all 73859, 72469, 76840 and 76091 control boxes
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Sku: 34-01395-K
Thermistor, Control & Hi-Limit Sensor Kit, After Market
The after-market thermistor kit (1 control and 1 hi-limit sensor included with o-rings as well as adapters) that fit with either the 4kW or 6kW after-market PDR Titanium double-barrel heater These sensors can plug in directly to the motherboard located ...read more -
Sku: 30-01395-K
Thermistor Adapters, After-Market
The after-market thermistor adapters work to allow the after-market thermistors to connect to the outside of the control box instead of connecting directly to the motherboard of the control box -
This is the replacement thermistor for the 1999-2002 Hot Spot RE, RLX, SE, SLX, and the 2001-2002 SLXtra (wood-sided) spa models Also the Solana 2000-2002 X, 2003-2005 RX, SX, and TX models This thermistor communicates the actual water temperature to the ...read more
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This is the after-market replacement thermistor for the 1999-2002 Hot Spot RE, RLX, SE, SLX, and the 2001-2002 SLXtra (wood-sided) spa models Also the Solana 2000-2002 X, 2003-2005 RX, SX, and TX models This thermistor communicates the actual water ...read more
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This sensor fitting is installed through the side spa shell at the base of the hot tub near the suction and drain fittings on Hot Spot models beginning in 2020 Its purpose is to provide a watertight seal around the 72493 temperature control thermistor bulb
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Sku: 76112
Thermistor Sensor Fitting, Hot Spot
This sensor fitting is installed through the side of the filter housing in all 1998-2005 Hot Spot brand spas Its purpose is to provide a watertight seal around the 71578 thermistor bulb -
Sku: 37727
Thermosensor Fitting, Solana
This thermo-sensor fitting is used to waterproof the temperature sensor (thermistor) that is located in the filter compartment of all Solana TX, RX and SX models -
Mounts in the control box on all Hot Spring models prior to 1997 that used a square receptacle The one-speed circulation pump (Silentflo 5000) plugs into this receptacle regardless of the voltage of your spa model All Hot Spring spa circulating pumps are ...read more
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Used on the 1995-1997 Hot Spot spas this fitting provided a flange for the cartridge-style heater element to seal against and a "dry-well" for the thermistor probe to slide into
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Sku: 10408
Receptacle, Jet Pump, Hot Spring
This jet pump receptacle mounts into the control box to provide an outlet to plug in the jet pump's power cord on the 1990-1996 Hot Spring Classic, Grandee, Highlife, Jetsetter, Prodigy & Sovereign spa models -
Sku: 34894
Jet Pump Receptacle
Jet Pump Receptacle (for two-speed pumps) used on Hot Spot spas prior to 1998 -
Sku: 32452
Harness, Pcb 4T 115V 5Kw
Wiring harness for a 10-minute timer circuit board used on all models 1991 to 1993 Hot Springs spas The timer board is part number 71346 and is currently unavailable -
This 220volt heater receptacle is located in the 1995-1996, 220volt Tiger River Manora & Tondi control box It provides a place to plug in the heater Over the years, this item can fatigue and require replacement For the 120volt receptacle see part 35114
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Sku: 71280
Thermowell, Hot Spot Square
Thermowell houses the temperature sensor for Hot Spot Square -
Sku: 70899
Thermowell Assembly
Thermowell houses the thermistor probe on a 1995-1997 Hot Spot spa models -
Sku: 35112
Freshwater Ozone Receptacle, Tiger River
The female plug is installed in the control box and is used to plug in the Freshwater Ozonator on the Pre-1997 Tiger River Manora, Tondi & Khyber spa models -
Sku: 30170
Receptacle, Single – 20A 115V
Single receptacle, 20A 115V -
Sku: 34481
Screw Receptacle
Screw Receptacle -
Thermowell housing for the t-stat temperature probe to insert into This thermowell aka "drywell" keeps the copper t-stat probe away from the chlorinated water so it doesn't dissolve
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Sku: 008019
Sensor Set, Oasis
High-limit and control thermostat sensor set for the Oasis spa models -
Sku: 39204
Thermistor, High-Limit, Hot Spring, Tiger River, Limelight
This item is obsolete and replaced by:
79005This high-limit thermistor sensor is a safety device designed to communicate with the system to shut down the heater if the water temperature exiting your heater exceeds 118 degrees F It simply screws into the No-Fault Heater Housing (hand tight only) and ...read more -
Sku: 39205
Thermistor, Control Thermostat, Hot Spring, Tiger River and Limelight
This item is obsolete and replaced by:
79006This control thermostat thermistor is a safety device designed to communicate with the system to shut down the heater if the water temperature exiting your heater exceeds 118 degrees F It simply screws into the No-Fault Heater Housing (hand tight only) and ...read more -
Sku: 38415
Thermistor, Control Thermostat, Hot Spring and Tiger River
This item is obsolete and replaced by:
78970This control thermostat thermistor sensor detects the spa waters temperature and relays that information back to the system It simply screws into the No Fault Heater Housing (hand tight only) and plugs into the outside of the spa's control box If your ...read more -
Sku: 38416
Thermistor, High-Limit, Hot Spring and Tiger River
This item is obsolete and replaced by:
78969This high-limit thermistor sensor is a safety device designed to communicate with the system to shut down the heater if the water temperature exiting your heater exceeds 118 degrees F It simply screws into the No-Fault Heater Housing (hand tight only) and ...read more
Showing 1–30 of 41 results