Brewtus dual boiler no steam

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Justin G. Castillo

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Mar 12, 2024, 8:41:42 AMMar 12
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Hi:

Have a dual boiler brewtus vibration pump model. Can make espresso but no pressure or steam. Looking for a steer for how to diagnose the problem.

Thanks,

Justin

Joseph Helminiak

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Mar 12, 2024, 10:38:18 AMMar 12
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Quick guess is the heating element 

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Greg Shaw

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Mar 12, 2024, 7:12:31 PMMar 12
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Get out your volt meter and watch some basic troubleshooting:- making sure the proper voltages are present at boilers, static relay, etc...



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Kevin Maciunas

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Mar 12, 2024, 7:12:51 PMMar 12
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If there is no pressure or steam - it is probably the steam boiler pressure sensor/switch.  These devices first power the steam boiler up, when it gets to pressure then it cuts over to the brew boiler.  So it sounds like it *must* be failed in a hard stuck over to the brew boiler state.  Otherwise, if there is no steam, there is no espresso :)

Easy fix, and easy to check - multimeter rated for mains voltage.  There is a common wire and then two others - one to the brew boiler heater and one to the steam.  THESE ARE ALL MAINS VOLTAGE.  It *will* kill you.  So some care is needed :)  The alternative is to identify the brew and steam boiler leads, then with the machine off AND UN-PLUGGED FROM THE WALL do a continuity test between the common terminal and the steam boiler terminal.  Should be continuous.  If it's open circuit, it is not working.  The third way is to simply swap the brew and steam leads, power up and watch the pressure - if it rockets up past normal, kill power and open the steam wand - the pressurestat is toast.

Cheers
/Kevin
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