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Hot Tub Accessories

Thermistor's Electronic Temperature Sensors

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  • Description

Thermistor's Electronic Temperature Sensors
A thermistor is a semiconductor that changes resistance with temperature changes (as the temperature goes up, the resistance goes down). Typical dependable life span of these devices is 7-10 years.

#1 Item #: 71578 Thermistor, Control Thermostat, Hot Spot & Solana
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 controller to shut off the heater when the spa reaches target temperature.
#2 Item #: 38415 Thermistor, Control Thermostat, Hot Spring & Tiger River 1995-2002
This control thermostat thermistor (sensor that detects the spa water temperature) is used on the 1995-2000 Hot Spring Classic, 1995-2002 Hot Spring Grandee, Jetsetter, Landmark, Prodigy and Sovereign. It was also used on the 1995-1996 Highlife, 2002 Sovereign ILE (Special Edition) and 2000-2002 Hot Spring Vanguard. This thermistor was used on the Tiger River models 1995-1996 Khyber, Manora and Tondi and the 1997-2002 Siberian, Bengal and Sumatran spas.
#3 Item #: 39530 Thermistor, Control Thermostat, Hot Spring & Tiger River, 2002-current
This thermostat control thermistor (sensor that detects the spa water temperature) is used on the Hot Spring 2005-2006 Accolade, 2004-current Vista and Envoy, 2002-current Grandee, Jetsetter, Prodigy, Sovereign and Vanguard. Also used on the Hot Spring 2003 Highlife, 2002-2003 Landmark and 2002 Sovereign ILE (limited edition). This thermistor was used on the Tiger River 2002-current Bengal and Sumatran, 2002-2004 Siberian and 2003-current Caspian spa models.
#4 Item #: 72493 Thermistor, Control Thermostat, Solana & Hot Spot, 2006-current
This Control Thermostat Thermistor communicates the actual water temperature to the controller to shut off the heater when the spa reaches target temperature. It is used on all 2006-current Hot Spot Mallorca, Sorrento, Trinidad & Tobago spa models. It is also used on all 2006-current Solana RX, SX & TX spa models.
#5 Item #: 73992 Thermistor, High Limit, Solana & Hot Spot, 2006-current
This High Limit Thermistor is a safety device that will shut down the heater if the water temperature exiting the heater is too hot. This would indicate a "low water flow" condition. It is used on all 2006-current Hot Spot Mallorca, Sorrento, Trinidad & Tobago spa models. It is also used on all 2006-current Solana RX, SX & TX spa models.
#6 Item #: 38416 Thermistor, High-Limit, Hot Spring & Tiger River, 1995-2002
This high-limit thermistor is a safety device designed to communicate with the circuit board to shut down the heater if the water temperature exiting your heater exceeds 118 degrees F. It was used on the 1995-2000 Hot Spring Classic, 1995-2002 Hot Spring Grandee, Jetsetter, Landmark, Prodigy and Sovereign. It was also used on the 1995-1996 Highlife, 2002 Sovereign ILE (Special Edition) and 2000-2002 Hot Spring Vanguard. This thermistor was used on the Tiger River models 1995-1996 Khyber, Manora and Tondi and the 1997-2002 Siberian, Bengal and Sumatran spas.
#7 Item #: 39525 Thermistor, High-Limit, Hot Spring & Tiger River, 2002-current
This high-limit is a safety device designed to shut down the heater, jet pump, and spa light if the water temperature exceeds 118 degrees F. It was used on the Hot Spring 2005-2006 Accolade, 2004-current Vista and Envoy, 2002-current Grandee, Jetsetter, Prodigy, Sovereign and Vanguard. Also used on the Hot Spring 2003 Highlife, 2002-2003 Landmark and 2002 Sovereign ILE (limited edition). This thermistor was used on the Tiger River 2002-current Bengal and Sumatran, 2002-2004 Siberian and 2003-current Caspian spa models.

Parts List

Legend Model # Part Name Price Qty
1 71578 Thermistor, Control Thermostat, Hot Spot & Solana $31.99
2 38415 Thermistor, Control Thermostat, Hot Spring & Tiger River 1995-200 $19.99
2A 34878 Temp Control Therm O-Ring for 38415 $0.99
3 39530 Thermistor, Control Thermostat, Hot Spring & Tiger River, 2002-cu $17.99
4 72493 Thermistor, Control Thermostat, Solana & Hot Spot, 2006-current $17.99
5 73992 Thermistor, High Limit, Solana & Hot Spot, 2006-current $17.99
6 38416 Thermistor, High-Limit, Hot Spring & Tiger River, 1995-2002 $19.99
6A 34879 Hi Limit Thermistor O-Ring for 38416 $0.99
7 39525 Thermistor, High-Limit, Hot Spring & Tiger River, 2002-current $17.99