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weil mclain ultra 155 setting help?

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  • eugd
    eugd Member Posts: 75
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    Issues become more apparent two years ago when I had the combustion chamber cleaned out. But had issues with it since it was installed.
    The good news is it’s been 24 hours and I haven’t had one restart due to overheating or any lockouts.
  • DZoro
    DZoro Member Posts: 1,048
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    That unit has a aluminum block. It is very important to have it cleaned annually to prevent it from rotting out. But there is no reason to change any programming or wiring to do this process.
    It's actually quite simple, just needs to be done yearly.
    Merry Christmas!
    D
  • psb75
    psb75 Member Posts: 833
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    That was an impressive effort from the forum to chase this one down. Not easy with lack of schematic. Kudos to all who helped.

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