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 40 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 -
Sku: 34878
O-Ring, Control Thermistor
Control Thermostat Thermistor o-ring for the 79006 and 78970 thermistors This o-ring is located on the "inlet" side of the heater and is the larger of the two thermistor o-rings For the outlet side of the heater see the part# 34879 o-ring -
Sku: 34879
O-Ring, Hi-Limit Thermistor
High-Limit Thermistor o-ring for the 79005 and 78969 thermistors This o-ring is located on the "outlet" side of the heater and is the smaller of the two thermistor o-rings For the "inlet" side of the heater see part 34878 -
This control thermostat was mounted in the control box directly behind the temperature dial on all Hot Spring models from 1989-1993 It was mounted on the under the top-side control panel on all Tiger River models from 1992-1994
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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 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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Sku: 10489
Bridge Wave Rectifier
This rectifier was used on the 1990-1993 Hot Spring Classic, Sovereign, Prodigy, Jetsetter, Highlife and Grandee, 1994 Tiger River Khyber and the 1993-1994 Hot Spot Z model -
Sku: 33249
Thermostat, Control, Hot Spot
This Control Thermostat is the replacement for the 1993-1994 Hot Spot Z (round spa) spa model -
Sku: 30118
Cordgrip, Thermostat
This cord grip fitting is what seals around the 30203 and the 75077 control thermostats copper wire May require the 30690 adapter (not included) -
Sku: 34689
Capacitor Assembly, Hot Spot – Z
This capacitor was used on the Hot Spot Z (round) model after serial number Z-240132 (2nd quarter 1994) Note: For serial numbers prior to Z-240133 use part number 70838 upgrade kit -
Cable connector assembly for Khyber
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Sku: 20088
Antistatic Capacitor
This anti-static capacitor was used on all Hot Spring spa models prior to 1990 that used the AC Relay Coils The symptom of this part failing is static or wavy lines on the television when the spa is operational -
Sku: 71986
Rj-12 Phone Connector, 25 Pack
25 Pack of the connectors that go on the end of the cable for the replacement aux panels for spas made beginning in 1998 -
Sku: 70838
Capacitor Relay Upgrade Kit-Hot Spot Z
This upgrade kit is needed for the Hot Spot Z (round) model prior to Z-240133 (2nd quarter 1994) and comes with instructions for replacement from Z-330001 (3rd qtr 1993) to Z-240133 (2nd qtr 1994) Note: Factory photo shows that this includes a resistor ...read more -
Sku: 30204
Antistatic Capacitor
CAPACITOR ANTISTATIC No longer used Was used when there were interference problems with the televisions in the house when the heater would turn on -
Sku: 34007
O-Ring, T-Stat Adapter, Tiger River
This o-ring is used on the t-stat adapter where the knob for adjusting the thermostat attaches to Tiger River control panels from 1992 to 1997 The stem from the thermostat sticks into this adapter and the knob on the control panel sits on the adapter -
Sku: 008019
Sensor Set, Oasis
High-limit and control thermostat sensor set for the Oasis spa models -
Sku: 76834
Capacitor, 45 UF
Capacitor, 45UF -
Sku: 76835
Capacitor, 50 UF
Capacitor, 50UF -
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 40 results