Error code
The panel shows a sensor or high limit error
You want to know which sensor to replace.
The error code tells you which sensor: temperature or high limit. Check your manual.
See high limit sensorsHot Tub Temperature Sensors
Pick the part you need, then add your tub and we will show you which parts fit it.
See all hot tub parts
Need a hand finding a part?
01482 212322
Hot Tub Temperature Sensors
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Temperature Sensor for Jacuzzi J100 to J500 Hot Tubs - 6600-551
£12.00
In stock
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Temperature Sensor O-Ring for Jacuzzi J300 to J500 and LX/LXL Hot Tubs - 6540-228
£0.20
In stock
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Hi Limit LED Sensor for Jacuzzi J200, J300 and LX/LXL Hot Tubs - 6600-144
£5.20
Out of stock
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LCD Temperature Sensor for Jacuzzi J400 Hot Tubs (2010-2015) - 6600-181
£25.00
In stock
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Temperature Sensor for Jacuzzi Lodge Hot Tubs - 233005731
£42.99
In stock
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High Limit Sensor for Jacuzzi J100 to J500 and LX/LXL Hot Tubs - 6600-140
£16.99
In stock
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Temperature Sensor Cover for Jacuzzi Hot Tubs - 6660-215
£1.65
In stock
Hot tub sensors guide
How to find the right hot tub sensor
Hot tubs use a temperature sensor to read the water and a high limit sensor to stop it overheating. If either fails, the heater stops and the panel shows an error. Match the sensor to your range and year.
Short answer
How do I know if my hot tub sensor has failed?
A failed sensor usually shows as a sensor or high limit error on the panel, a temperature reading that jumps about, or a tub that stops heating. An engineer can test the sensor. Our sensors list the ranges and years they fit.
Start with your situation
Wrong reading
The water temperature reading is wrong or jumping
You want a new temperature sensor.
A worn temperature sensor often reads high or low before it fails.
See temperature sensors
Flow error
The panel shows a flow error
You want to check the flow switch too.
Clean the filter first. Then check the flow or pressure switch.
See flow and pressure switches
Lodge
You have a Jacuzzi Lodge
You want the sensor made for the Lodge.
We stock the temperature sensor for Lodge hot tubs.
See Lodge sensorsBefore you order
- Write down the error code on the panel.
- Find your hot tub make, range and year.
- Clean the filter and check the water level first.
- Order a new sensor O-ring at the same time.
- Have a hot tub engineer test and fit sensors on the control board.
Not sure which sensor has failed?
Tell us the error code and your hot tub make and model. We will help you find the right sensor.
Contact the teamQuestions about buying hot tub sensors
Straight answers on temperature and high limit sensors.
It is a safety sensor that turns the heater off if the water or the heater gets too hot. If it trips, the panel shows a high limit or overheat error.
The temperature sensor reads the water so the tub can hold the temperature you set. The high limit sensor is a backup that stops the heater if something goes wrong.
Low flow from a dirty filter is a common cause, as the water around the heater gets too hot. A failed sensor or a heater fault can also cause it. Clean the filter, then have the sensor tested if it keeps happening.
Turn the power off at the isolator before you touch anything. Sensors plug into the control board and sit in the plumbing, so a hot tub engineer should test and fit them.
Standard delivery is £2.99, and delivery is free when you spend over £50 on parts, chemicals and accessories.
Check the dimensions, seating and features on each product page before you order.