Help pls. Installed ED3 Lite, now printer won't heat or move xy or z

Could be a bung thermistor - if maxtemp or mintemp is triggered, you'll be unable to heat anything.

Fan and lights mean you have power, but these are not controlled by the board.

Anything showing up on the temperature graph?
When you connect the printer, look at the terminal window and check for any errors.

Did you update the firmware at all? If not, we can assume it's not a configuration error!

Homing will work most of the time - not sure of the behaviour with a temperature error, but check the endstop status (M119) and reported position (M114) to make sure these are working/make sense (in Marlin, if the axis doesn't think it's homed, it will not allow you to move away from the endstop).

I'll pull the thermistor and resolder it. Is there a way to test the thermistor?

Grob, I did not update the firmware.

Here is one more thing: the Mk5 extruder I had printed would not accept the Ed6 Lite extruder, it didn't fit. All three of my spare extruder blocks would not fit either.

So I removed the (bent) heat break tube from my prior Ed6 (original version) and simply screwed the new Ed6 Lite thermistor block and thermisto onto that. A half Ed6/Ed6 Lite extruder. I was hoping to get it running well enough to print a Mk6 extruder mount to fit the entire Lite hot end. Could that be the problem?

Thermistor should not be soldered. Please follow the E3D assembly instructions.

Firmware needs to be updated. Please follow the E3D assembly instructions.

The groove mount changed between v5 and v6.

Lite6's heatbreak and heatsink are one piece. All E3D heater blocks and nozzles (except Cyclops) are cross-compatible, even back to v5.

Thanks for the clarifications elmoret, you know these hotends better than nearly anyone!

I guess they ship in kit form to save cost (assembly is, as you can see, a bit fiddly, and would add a lot to the price), and it is targeted at a handy DIY kind of crowd (which you're definitely a part of, no hiding!) so doesn't seem like too much of a stretch to me.

The instructions they provide for assembly are pretty clear cut for the materials they provide, and the images sure help. They've even gone down to the detail of pointing out which side of the washer you should put against the thermistor...

Thermistors are easier to interface with the electronics, and are relatively cheap for their accuracy and response speed. The tradeoff is they're quite delicate. A thermocouple is increasingly an alternative, E3D sells an interface board for these. These can be installed much more brutally (directly connected to the heater block is fine!) but note the cost increase when the amplifier is accounted for.

The screw-down thermistor installation is an improvement on the previous: which was kapton tape... The screw provides better strain relief, and is easier to assemble consistently compared to the tape method. With the instructions they provide, it should reasonable to achieve a good installation. Check out the close-up photos of the sleeving in the hole etc. I totally get your point about providing them with the sensor pre-installed. I've seen people discussing encapsulating a sensor inside a screw, and then the sensor would only need to be screwed in - but again, not sure this would have been as economical.

Continuity checks are always a great idea. Go for it. Results should be:
* Leg to leg: 100kOhm, or very roughly thereabouts depending on temperature (of course!)
* Leg to block: should be high impedance / not connected

Firmware update for E3d lite:

It sez: "shipped after June 2013 have a Solidoodle-manufactured proprietary Printrboard and use an ATMega 1286-AU."

That's mine. Then it sez: "Printrboard firmware update process
If you have one of the more recent Solidoodles with the Printrboard, follow the instructions [1] for updating the firmware. Ignore the rest of this section except for the table of changes to the Configuration.h file below."

However, when I click the [1] link it takes me to the Solidoodle wiki and "The page update-firmware-here you want to access does not exist."

So, where can I find the instructions to update the Printrboard firmware?

Thanks.

I posted a topic with instructions some time ago here if you need firmware instructions.
However, these specific instructions are only for the Printrboard. It is crucial to tell the difference, so here is a visual comparison.

Here is a Printrboard

Here is a Sang