My unit runs for around 40 mins, raises the pools temperature, seems to be working fine and then catches an E05 error. I've replaced the flue stack sensor, and get the same behavior. Once it gets the E05 I can restart it, and it will run for a short period of time and I'll get another E05 error. I've tried once I get the E05 error to hold down the spa or the pool button to see if I can get output of some other code, but that doesn't seem to work for me. I have to press the off button and then it restarts. A couple of other items I'll note because in case they might help diagnose the issue. From time to time the unit won't fire. I have a small paver brick I use to tap on the gas manifold and that always does the trick. Also, from time to time, the unit will attempt to re fire, and I hear the click, but it seems to go out immediately and will click again 2-3 times, it sounds like each time the click occurs gas in the system ignites and it causes the unit to shake a bit. When this happens it only takes about 3-6 seconds until the unit is running just fine, but it doesn't seem like it should run that way.
Thank you for any help.
Thank you for any help.
