¶ E307 - Right nozzle T sensor wire is short circuit
¶ Right nozzle T sensor wire is short circuit
¶ Steps:
(1) Power printer off, unplug the main power cable. Unplug the cable on the top of right extruder, toggle the buckle of extruder and take it off.
(2) Use 2.0 mm hex screwdriver to remove the 4 screws fixing the black cover of right extruder. (Figure - 1)
(3) Re-plug the plug of nozzle temp sensor in the interconnection board (red highlighted in figure - 2), and install right extruder assembly back. Use the knob wrench to to remove the back cover of printer, locate the J11 in main board and re-plug it (highlighted in figure - 3). Then, power printer on and do a test printing.
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If the issue presist:
(4) Check if the right temperature sensor or its cable was broken. Refer to step 1 & 2 to take the right extruder assembly off, unplug the plug of nozzle temp sensor (Figure - 2), and use the meter to measure the resistance of the sensor via the 2 pins of plug (it should be around 110Ω@25℃). If the resistance value had a big difference, please replace the temp sensor. (step of replacement)
(5) Check if the cables in left umbilical track had any damages. Meanwhile, unplug plug-J11 in main board again (Figure - 3), measure the resistance value via the pin #10 & #12, normally the value should be around 110Ω @25°C ( Figure - 5 ). If the value measured via the 2 pins of sensor is normal, and the value measured via the 2 pins of J11 is abnormal, then it's the cable issue, please replace the assembly of unbilical track and cables.
