jesse

Thanks, I actually just figured it out and it's MUCH dumber problem than that. The power supply was plugged into the wall and into the Ultimaker... but... it was loose in between. I realized there had to be something wrong since the MOSFET was only being fed 3.4V and you said it should be seeing 19V and low and behold there was the problem on the floor with the powersupply having the wire loosely attached. Thanks a bunch!! It seems stupid but I probably would have spent weeks trying to figure that one out.

I pulled the fan board off. Resistance across the heater is ~9.4 ohm. Voltage without the heater connected on the line is about 3.4 V, and drops to zero if the heater is connected.

Sorry, I missed the send M503 command in your instructions. Yes just I sent in both including the heat up command. After sending the M503 command I get: With the M109 T0 S180.00 I get a continuous stream of: "< echo:Heating failed"

Thanks, In the Title bar it gets to a state "Operational, Temp 26" The contents of the box/log: Temperature did not increase although I only let it sit for a minute or so. I pulled the USB & power cables. Edit: This is what I see (after pulling the USB):

So my guess at the moment is that the heater is dead or the circuit to it is damaged but I'm neither sure which or how to check this out.

anon4321 thanks, I tried what you suggested however I still am sitting forever waiting for Cura to pass the "Checking the heater and temperature sensor" point.

The only issue on the given trouble shooting list that seems to be an issue is that the print head is cold (I can touch it no problem), however checking the leads at the PCB (arduino shield I believe) there is no voltage there. Is this to be expected? Also, should I be trying to upload a different firmware? Since the communications with the device seems to be down with the recent update.

Yes the original wooden version.

So I just attempted to connect to an Ultimaker that has been sitting around the lab from a previous researcher. Using Cura I got about as far as the Checkup part which told me I was having some temperature issue, following the troubleshooting guide only proved that I had neglected to plug the thing in however did not solve my problem. In a blind attempt and hope to resolve the issue I finally tried to upgrade to Marlin firmware (which I had skipped before) and now I'm just in a state of perpetual "Checking the heater and temperature sensor". Any ideas on how to move forward?