Jandy LXi natgas won't ignite issue

[ryanmonahan]

Wondering if there're any Jandy experts here...

My heater has been working fine. It was off for about 3 weeks while we were on vacation, came home and it lighted up, heated the pool about 5 degrees, then quit.

Here's where its at:

1. When you hit the button to heat, fan kicks in

2. About 30s and then there's a click, and you can see the igniter light in the viewing glass

3. Igniter glows brightly for about 10s, there's another click (assuming gas valve) then igniter goes out

4. Goes through this same cycle again and the ignition module flashes twice (Flame - No Call for Heat)

5. Does this 5-6 times then flashes ign error

 

It'll do this every half hour or so.

What I've tried:

Swapped out gas valve for a brand new one

Tested with electrical tester, only odd think I find is at the second click (after igniter lights) 24v gets sent to the gas valve only for about 1/2 sec, then stops.

 

Any suggestions?