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Faulty PID or something else?


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I have an issue with my Brewtus again.  If the machine is left on for too long the temp goes up to over 100 degrees and get strange numbers appearing on the PID display.  It will work fine from cold for about an hour or so and then the temp shoots up. Ive tried resetting the PID and all settings seem fine.  Is this a faulty PID or temperature sensor?  Not sure what to do?

 

Would rather try and fix this myself, rather than sending the machine away.  I've replaced the PID once before easily enough.

 

Can anyone please advise?

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7 hours ago, Walter Sobchak said:

...If the machine is left on for too long the temp goes up to over 100 degrees and get strange numbers appearing on the PID display.  It will work fine from cold for about an hour or so and then the temp shoots up. Ive tried resetting the PID and all settings seem fine...Would rather try and fix this myself...

Hi Walter, do you know what a "dry-solder-joint" is or looks like ? ....if you do then would you feel confident in using a soldering iron ? If so then it's worth a quick visual inspection of the PCB in the PID box.

DO NOT UNDER ANY CIRCUMSTANCES LOOK, INSPECT OR DISASSEMBLE THE MACHINE WITH THE MAINS PLUG CONNECTED. UNPLUG BEFORE DIVING IN.

Good luck either way

Fides Nemo

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7 hours ago, Rumpelstiltskin said:

Hi Walter, do you know what a "dry-solder-joint" is or looks like ? ....if you do then would you feel confident in using a soldering iron ? If so then it's worth a quick visual inspection of the PCB in the PID box.

DO NOT UNDER ANY CIRCUMSTANCES LOOK, INSPECT OR DISASSEMBLE THE MACHINE WITH THE MAINS PLUG CONNECTED. UNPLUG BEFORE DIVING IN.

Good luck either way

Thanks, I've googled and will take a look. :)

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  • 4 weeks later...

Evening gents, 

 

Quick update: checked the PID PCB which appeared to be fine and ordered a replacement sensor https://www.bellabarista.co.uk/expobar-temperature-probe-for-dual-boiler.html which was the incorrect size. 

 

After giving the probe a good clean the temperature is steady as a rock and seems to be working absolutely fine again.  Happy days. 

PXL_20201228_093627265.jpg

PXL_20201228_093619490.jpg

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  • 2 weeks later...

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