CaptPat Posted Thursday at 04:10 PM Share Posted Thursday at 04:10 PM (edited) I have an AH 450-DE2, annual service was performed in March 2023 and the unit has run several times since then without issue. I normally store the coach without power and the batteries disconnected. Today I powered up the coach and noted that the Low Battery Voltage Fault light was not lit, as it normally is following power restoration. I depressed the Low Voltage Reset with a non-conducting insert from a Bic Pen just in case the light was burned out. I turned on the Diesel Burner in the coach, the green light came on and the AH motor started as normal. However, it would not ignite, the following lights on the control board panel were lit green: Low Temp Cutoff Status, Diesel Burner Status, and Heating Status. After about 30 seconds the green light inside the coach for the Diesel Burner extinguished. After turning off the Diesel Burner switch the unit runs for several minutes and then shuts down. I've tried the sequence several times with the same results each time. I also tried the electric element, the light on the switch in the coach turns green, I observe an increase of 11A AC on my power monitor, and the Electric Heating Element Status light is green, though no other lights are lit on the control board. The boiler water overflow tank level is filled to about halfway between the hot and cold lines, external temperature is 70 degrees. I called AH and they apparently are only responding to email inquiries, no response so far. Any thoughts or suggestions on the next steps? TIA Edited Thursday at 04:12 PM by CaptPat Link to comment Share on other sites More sharing options...
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