Jandi LXi 400K CHK IGN FAULT (Ignition lockout - three flashes on Fenwal)

Here's the sequence:
With Pump and Heater on...

1. Blower turns on
2. Pre-purge completes
3. Hot surface igniter glows (visually confirmed)
4. Gas valve clicks (but didn't measure with meter)
5. Trial for ignition
6. Burners ignite (can see them and feel the heat blowing out the top vents)
7. After about 5-7 seconds, the burners kick off and the gas valve audibly clicks closed- can smell residual gas for a bit
8. Repeats steps 2-4 3 times and then goes into lockout with the Fenwal giving...

Read more