this post was submitted on 12 Mar 2025
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Sounds like a thermal runaway where a temperature changed too quickly and the code interpreted that as a fire or risk of fire and shut down. A lot of times that can be helped with a silicone sock and a PID tuning. Another thing is the ceramic heater core is going bad and it can't keep a stable temp above a point. Heater cores are cheap and easy to change. The heater core is considered a consumable part and usually comes in multiple packs.