Search found 2 matches

by RobVH
Tue Nov 25, 2014 11:05 am
Forum: Others
Topic: Strange temperature readings
Replies: 2
Views: 7312

Re: Strange temperature readings

Hi Star, the problem was a blown F3 fuse, which in itself is odd since it had never been used. The strange behavior was because the Geeetech Rambo has the logic powered through F2 (along with the motors) where the normal Rambo has logic powered through F3. Normally if F3 blows the board doesn't func...
by RobVH
Mon Nov 17, 2014 3:13 pm
Forum: Others
Topic: Strange temperature readings
Replies: 2
Views: 7312

Strange temperature readings

Hi, I have a strange problem with the rambo 1.2a board I purchased recently. The heat bed and associated thermistor works fine, it reads the temp and heats up as expected. The hot end thermistor reads fine too, but when I try to heat up the hot end both the hot end and heat bed temperatures instantl...