Checked the hot end thermistor again at this point and couldn't get any values, which suggests the thermistor wire was broken somewhere. This fixed the bed reading but hot end was still not working. All the other settings were giving very high readings at room temperature.
Only the static (dummy) ones worked (reading a static value of 25/100 ☌). Reflashed Marlin with different thermistor settings.Both the hot end and bed were about 100k. Checked the resistance of the thermistors.It gives the "Heating failed, printer halted, please reset" error when I tried to heat the hot end and bed. I got my printer fixed and am posting steps I took for people with similar problems in the future.Īfter I replaced my entire heating unit and reconnected the wires, my printer started to read about 135/185 ☌ for the nozzle and bed at room temperature. Ordered new thermistors and that should fix the problem. So turned out both the stock motherboard and my hot end thermistors were not working. Took the resistances on the old and new hot end thermistors and couldn't get reading from either. The hot end is now reading -14 ☌ with the thermistor plugged/unplugged. Upon receiving a new motherboard, that fixed the bed temperature reading. Now thinking I might've somehow broken the board when I was disassembling it. In troubleshooting the issue, I tried disconnecting one/both of the thermistors at a time and the reading stayed unchanged. Would appreciate any thoughts/suggestions. I'm suspecting something wrong with the motherboard but was hoping I could figure out what's wrong before going ahead and buying a new board. Tried with old thermistor and reading stayed at 135/185 ☌.Only the static (dummy) ones worked (reading a static value of 25/100 ☌) Tried updating the firmware with a few different thermistor settings.Checked the wiring, the thermistors are reading about 110k and 10k at end of the wires.It also gives the "Heating Failed" error message. After the replacement, my printer started reading about 135/185 ☌ for the hot end and bed are both at room temperature. I've had issues with my hot end and decided to replace the whole assembly with this.
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