Ender 3 pro. Getting thermal runaway error on power up. Have checked thermistor and heater block with meter and seem fine. Have checked connections on board. Any ideas? It has an upgraded main board v4.2.7.
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Thermal runaway error when first turned on
Ender 3 pro thermal runaway error
My ender 3 pro gives thermal runaway error on start up and cannot do anything. I’ve checked resistance of thermistor and heater block both seem similar to other ones I’ve seen online. I’ve checked connections and power. Any suggestions??