Where to get igniter for Lite 2 Pool and Spa Heater

need more info what does it do or dont do?

this may tell me you dont know if the ignition control is not working. see the owner manual at jandy.com

It could be that the Igniter has gone bad. Or it cold be a number of other items, like the gas valve itself. If the heater has a display panel on it, is there an error code showing? If there is, go to your Owner's Manual and find out what the code is for the heater.

If you do not have a manual, you can find one online at the following link:

http://www.inyopools.com/owners_manual/jandy_heaters_lite2.pdf

A. Check fuses on igniter wires. Identify and correct loose connections or broken wires. B. Measure room temperature resistance and ensure value is in the correct range. See manual for details. C. Replace igniter.

FL 4 is igniter failure.
1. check the fuses on igniter wire as well as the wires.
2. replace igniter

ignition control board failure