Err: MINTEMP LCD and Repetier-Host

[retaf99]

IMG_1633.JPG (133.84 KiB) Viewed 14641 times

IMG_1633.JPG (133.84 KiB) Viewed 14641 times

[zhangxueyou]

When you unplug the wires, the screen displays like this picture:

QQ截图20150325160105.png (287.94 KiB) Viewed 14642 times

QQ截图20150325160407.png (546.83 KiB) Viewed 14642 times

When you plug 2 jumper caps to to mainboard, the screen displays like this picture:

QQ截图20150325160131.png (249.58 KiB) Viewed 14642 times

QQ截图20150325160219.png (424.35 KiB) Viewed 14642 times

Check it.

[retaf99]

Started the printer this morning and there was no MINTEMP error. Heated the extruder and bed to test. Everything worked fine. Let it cool down, shut it off, came back after lunch started it up, and now has MINTEMP error again. I am at a total loss as to what is wrong with this thing. Between the missing parts, bad firmware, and errors this is very frustrating. Especially after paying over $400 for the printer.

[retaf99]

With both thermistors unplugged the hotbed displays 0/0 but the hot end shows 22/0.

[retaf99]

Yes when I put jumpers on the pins as in the picture, both read 0/0, 0/0 and MAXTEMP BED

[zhangxueyou]

Please refer to these pictures and check if somewhere on the back side of boards is short.

ArduinoMega2560_R3_Back.jpg (89.46 KiB) Viewed 14641 times

Rampsback.jpg (61.51 KiB) Viewed 14641 times

[retaf99]

I think I may have found the problem, a short in the connector. Checking now, and I will also check the back of the board.

[retaf99]

IMG_1645.JPG (100.93 KiB) Viewed 14640 times

IMG_1640.JPG (114.06 KiB) Viewed 14640 times

Connector seems okay. Checked boards, I didn't see anything that looked wrong but I have no idea what to look for so I took pictures. Still hae the error.

[retaf99]

Now that the boards are back together both are reading 0/0, 0/0 and still Err: MINTEMP

[zhangxueyou]

Hi,retaf99
Have you received my email?
Please send me your pruchase link and your order number.
My email: Cheung.Weng@geeetech.cn