Posted Tue Apr 16, 2013, 8:37pm Subject: Vibiemme Domobar Super Hx making a pressurized popping sound
My machine is only a year old, plus a few months.
This morning,I had the machine on, and after the cooling flush and pulling shots , when it kicked into its cycle, it made two loud popping noises, and the pressure gauge on the left ( bad espresso machine owner, the name escapes me) hopped a bit at the sound.
I turned the machine off for now, husband and I had to go to work. Going to check it out tonight.
Obviously, if anything is wrong, we're calling First Line, I just thought I'd see if anyone here had suggestions.
SStones Senior Member Joined: 24 Nov 2012 Posts: 506 Location: Canada Expertise: Professional
Espresso: Giga 5, ECM Giotto, Rocket... Grinder: Anfim Milano-Best Vac Pot: No :( Drip: Some $30 thing from Walmart Roaster: I buy pre-roasted.
Posted Wed Apr 17, 2013, 3:12am Subject: Re: Vibiemme Domobar Super Hx making a pressurized popping sound
Possibly the boiler is underfilled and the element is exposed to air violently boiling the surface without the effective heat conductivity it needs to be submerged for... The levelling probe would need to be cleaned to ensure proper fill level.
Worse, the element could be cracked allowing water into the insulation where it sputters, pops and bangs and makes the element worse and worse. If so you can check the resistance through the element (Should be anywhere from 10 to 14 ohms resistance (Assuming 120Volts, 1200-1300 watts)). And there should be no conductivity between either element connection and the boiler wall (At maximum ohmeter range).
If boiler fill level is okay and element is electrically normal, go ahead and turn it on and watch it heat up. See if it behaves normally.
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