Hi, I have the Jandy Lite 2 Heater. Display is working, it says the pump is running which is correct so its detecting flow. It also knows the temperature of the water. When I switch it to on it does not turn on. Eventually I get a service error code FL3. Which means: flame detected when no flame should exist. Trouble shooting guide says:
![1570934701618.png 1570934701618.png](https://www.troublefreepool.com/data/attachments/103/103587-f6a3799fe9c9ae5f363a55c7e8477c41.jpg)
I do not see any damage, another site said to replace the board or the sensor. How do I test if the sensor is working? Any other solutions would be welcome. Below is the picture of the sensor.
JANDY R0334300 LAARS LITE 2 FLAME SENSOR
www.yourpoolhq.com
![1570934701618.png 1570934701618.png](https://www.troublefreepool.com/data/attachments/103/103587-f6a3799fe9c9ae5f363a55c7e8477c41.jpg)
I do not see any damage, another site said to replace the board or the sensor. How do I test if the sensor is working? Any other solutions would be welcome. Below is the picture of the sensor.
JANDY R0334300 LAARS LITE 2 FLAME SENSOR
![www.yourpoolhq.com](https://cdn.yourpoolhq.com/pub/media/catalog/product/cache/a7accf1eb04b5e75c0ec9f7aa74e840d/r/0/r0334300_2.jpg)
Jandy R0334300 Laars Lite 2 Flame Sensor
Jandy part number R0334300 Pool Heater Flame Sensor Original Jandy Laars replacement part Laars Lite 2 LD and LG (mfg. 2000-2009) Laars Lite (1997-2000) Jandy Lite 2 LJ (2000-pres)
![www.yourpoolhq.com](https://cdn.yourpoolhq.com/pub/media/favicon/default/32x32.png)