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I replaced the power distribution board and I'm happy to report that the JXi is fully operational again. The board was partially shorted out. I don't know exactly what caused the short or when it occurred. Last week, when I replaced the ignitor and restarted the heater, it was early morning...

Something didn't make sense to me about Jandy's flow chart in the JXi repair handbook, and made me doubt that the ignition control module is my issue. Since I received zero voltage on L1 and L2 when I should have measured 120 VAC, that would point to a power issue. L1 and L2 supply 120 VAC to...

Thanks for your response, and for all your previous posts that have well documented your issues with the JXi. I followed the flow chart in the JXi repair handbook and took some readings. I received zero voltage on the feeds going to the ignitor. The flow chart then said to measure between L1...

It has not been serviced. Is it possible for me to inspect them?

Thanks. I appreciate that info. I am not feeling any bursts of heat.

Thanks for the link. I was just reading a post by @setsailsoon about his issue with the heater. Like him, I suspect I am having a ground interference issue. I have been having some electrical issues in my house recently that I have yet to get to the bottom of and think it could be related...

Sorry I misread. I thought you were asking size of the pool. The manual says it comes in three different sizes. 200k, 260k, and 399k. I don't know which one it is. Can't find a serial number anywhere on the unit.

Approximately 20,000 gallons

Thanks for the responses. The issue occurring in the video has ceased, but the ignition lock out fault persists. The ignitor is brand new and has continuity. I don't know the external gas pressure to the JXi, but there is a Bosch flash heater for the house right next to the JXi. It is...

Hi there, I have a Jandy JXi heater that is malfunctioning. I have done comprehensive reading of past posts here on the LXi and JXi, as well as additional reading up on the Fenwal controller that the heater is outfitted with. The issue I am having is ignition. When I turn on the heater, the...