Geeetech

Looks like your thermistor is not connected or being read. Check your connections and if all looks good try replacing the thermistor.

I have had my A20M about 3 weeks now and started noticing similar issues the last few days. Now today the printer won't even start printing because the the E1 temp reading is fluctuating too much. I have tried PID tuning and replaced the thermistor, but nothing helped. Now I notice that both the ...