Is Your Green Ready Light or Logo Light Flashing? How To Diagnose and Replace a Bad Temp Sensor

In this video, we show you how to diagnose and replace a bad control T-stat thermistor in a 1997-Forward Hot Spring Spa, Tiger River Spa, and Limelight Spa. If you have a flashing green ready light on your control panel or a flashing green logo light, it means you probably have a bad temp sensor. Always replace both sensors at the same time. Please visit us at backyardplus.com for all your OEM Hot Spring, Tiger River, Limelight, Hot Spot and Solana replacement parts. Use our parts finder serial database to help identify parts that belong to your specific hot tub make, model and year: https://backyardplus.com/parts-finder/ For the best prices and service on all your Hot Spring replacement parts, check out: https://backyardplus.com/ To purchase the Thermistor Control & High Limit Sensor Kit, Item#: 34-01395-K, check out: https://backyardplus.com/parts/34-013... If you have a 1997–2003 Hot Spring or Tiger River spa with the No-Fault 4000 or 6000 heater like the one in this video, you will need Control & Hi-Limit Sensor Kit, Item#: 34-01395-K All other No-Fault 4kW and 6kW heaters use the 79005 and 79006 sensors. Or, if the sensors plug into the outside of the control box, use the 78969 and 78970 sensors. To purchase the 79006 and 79005 Control Thermostat and Hi-Limit thermistor, check out: https://backyardplus.com/parts/79006-... https://backyardplus.com/parts/79005-... To purchase the 78969 and 78970 Control Thermostat and Hi-Limit Thermistor, check out: https://backyardplus.com/parts/78969-... https://backyardplus.com/parts/78970-... 00:00 Beginning 00:25 Tools and parts you will need 01:00 Disconnect power and remove the door 01:10 Remove the control box to gain access 01:30 Unplug the old T-stat sensor and plug in the new one 01:45 Pinch off both heater hoses 02:03 Place a towel on the floor to catch the water 02:10 cover the O-ring with grease 02:23 Loosen the old T-stat 02:35 Remove the old sensor and plug the hole 02:48 Thread in the new sensor by turning in clockwise 02:58 Remove and install the Hi-Limit thermistor 03:32 Remove the hose pinching pliers and reconnect power