Needing help… I have a Looi Yankee Bay P1 fireplace insert that continues to have a #4 fault code. Snap discs have been replaced, and it continues to fault. Happens in manual mode and if in automatic. Wall thermostat is new as well. Igniter has been replaced as well. It was purchased in 2008 by previous homeowners. We have had it cleaned with yearly maintenance since we purchased home in 2021. Any suggestions on what could be wrong or what should be done to troubleshoot are greatly appreciated.
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