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Felicity has a troublesome temperature sensor #1203

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amcewen opened this issue Aug 6, 2019 · 8 comments

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@amcewen
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commented Aug 6, 2019

Felicity is reporting problems with her temperature sensor:

ERROR - STOPPED
Temp sensor
Go to:
ultimaker.com/ER01

That error page has a list of troubleshooting steps to run through. I haven't tried any of them yet.

@jackie1050

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commented Aug 6, 2019

@cheapjack and I ran through the troubleshooting steps above.
We took the cover off the main board and checked that the cable was connected to 'TEMP1' and that the red end wires were properly inserted in the connector - they were.
We then swapped the PT100 sensor (TEMP1) with the one of the heated bed (TEMP3) where they connect to the main board and tried to heat the nozzle to 90C. This led to ER03, which is a heating error (trying to heat but nothing happening).
We swapped back the sensors and left the printer.

We need to reswap the sensors and heat the bed. If we get ER01 then the sensor is faulty.

@jackie1050

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commented Aug 6, 2019

I swapped the sensors again and heated up the bed - the screen continued to give the actual temperature as 23C, which is correct as the nozzle was at room temperature - so it didn't show the error we were expecting and we need to do more diagnostics.

@Thingomy

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commented Aug 10, 2019

Thermocouple confirmed bad; I have stripped down the head and removed the offending article. Head of printer is currently in pieces and in need of a replacement thermocouple. Threading the wire for replacement down wiring loom will be a significant task.

Note that one of the fans has a crushed and shorted wire, this fan will need replacing too.

@Thingomy

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commented Aug 10, 2019

Wire colours:
centre fan - +ve blue, -ve orange
side fans (in series) - +ve yellow, -ve green

red and brown - not connected at either end

@jackie1050 jackie1050 added the Shopping label Aug 12, 2019

@Sean-anotherone

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commented Aug 12, 2019

PT100 sensors are cheap !
https://www.ebay.co.uk/itm/PT100-Sensor-Probe-Platinum-Chip-EN-60751-5-Pieces/291800885504?hash=item43f0b02900:g:U7QAAOSwajVUSBXV

Would need a bit of hacking to fit it into the existing can, but rather better value than £25 !

A tenner for a 30mm? fan is way OTT too, : 2 in series might be 5v fans running on a 12v supply?

https://www.ebay.co.uk/itm/5V-mini-3cm-30mm-30x30x10mm-2pin-pont-brushless-cooling-cooler-fan-3010s-In-DY3/372683918607?hash=item56c5b14d0f:g:fDgAAOSwVcZcHGA5

Just me being a cheapskate, sorry, economically conscious. :)

@jackie1050

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commented Aug 13, 2019

@DoESsean - if @Sean-anotherone prepared to do any required mods, then worth trying

@magman2112

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commented Aug 15, 2019

Hi - Sean here, just using Magmans laptop....

I took a look at the broken bits that are available and a repair isn't really feasible, I would suggest buying the part that has already been identified and taking some measurements before fitting it, then matching up a cheaper part using those measurements so a discount repair can be made next time.

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