Ошибка err7 на 3d принтере

This is the reason for temperature protection. You can try to modify the following values.

#======================== Thermal Runaway Protection =======================

THERMAL_PROTECTION_PERIOD 80 #Seconds;When the display screen frequently appears Err7,the current value can be appropriately increased
THERMAL_PROTECTION_HYSTERESIS 5 #Degrees Celsius
WATCH_TEMP_PERIOD 60 #Seconds;When the display screen frequently appears Err5,the current value can be appropriately increased
WATCH_TEMP_INCREASE 2 #Degrees Celsius
THERMAL_PROTECTION_BED_PERIOD 80 #Seconds;When the display screen frequently appears Err7,the current value can be appropriately increased
THERMAL_PROTECTION_BED_HYSTERESIS 5 #Degrees Celsius
WATCH_BED_TEMP_PERIOD 60 #Seconds;When the display screen frequently appears Err6,the current value can be appropriately increased
WATCH_BED_TEMP_INCREASE 2 #Degrees Celsius

So if understand correctly ERR 7 is hot end theraml protection, ERR 6 is bed thermal protection

Err1: The hot bed exceeds the maximum temperature limit, please check if the thermal interface is shorted;
Err2: The nozzle exceeds the maximum temperature limit. Please check if the thermal interface is shorted.
Err3: The hot bed exceeds the minimum temperature limit, please check if the thermal interface is disconnected;
Err4: The nozzle exceeds the minimum temperature limit, please check if the thermal interface is disconnected;
Err5: The nozzle fails to heat up. If the nozzle does not reach the set temperature difference within the set time, an error is reported; please check the configuration file or check whether the power supply is sufficient;
Err6: The heating of the hot bed fails. If the hot bed reaches the set temperature difference within the set time, an error is reported; please check the configuration file or check whether the power supply is sufficient;
Err7: Thermal runaway; when the temperature rises to the target temperature, the current temperature is lower than the target temperature value within the set time and the error is exceeded; please check if the thermal is normal or the PID value is correct.

Check also wire connectors on a board. Just pull gently wires (both — heating bed and hot end wires) I saw ERR7 often when I have had loose connection. Connectors installed on the board suck.

I am getting err3 when my nozzle hits a certain temperature. But the thread says it’s a hotbed issue. Why is this

I keep getting error 7 and 5 and I have already put the watch period for those errors up to 400 and it’s still failing hours into the print