I have a Jandy LRZE 350btu heater. Its 4 years old. Saltwater pool.
For the past few days, as soon as we start the pool, the temperature sensor seems to read the water as being 40C even though its actually around 23C according to the thermometer in the pool. And its been really chilly the past few days so the 23C is accurate. Bottom line the heater won't turn on as the sensor thinks it way past the set temperature.
Now I have checked the water flow, the filters and anything else that I can think of. I have cycled the power to the heater. It seems from what I have read that this is a problem with the sensor.
Can anyone confirm they have ever had this problem. I know the part number (R0477300) and it seems easily accessed, but I am wondering if I am over looking anything. Also can this sensor be cleaned or is is it simply 'done' and needs replacing?