I have acquired a used Quick Mill Andreja Premium EVO espresso machine.
The heating element operates every 40 seconds which happens when the machine reaches the correct pressure, Additionally, there is a very loud sound from the relay each time it goes on.
Is this normal? Could it possibly indicate a faulty relay?
my relay details are:
RELE0980
FINDER 230V
#very load sound of relay in Quick Mill Andreja Premium EVO
violet nebula
hollow gust
How loud is.. very loud?
Is it a pressurestat ? Or some digital system with physical relay?
Not SSR
violet nebula
yes, pressurestat , nothing digital in this machine.
there is sound of TIK TIK TIK ....
hollow gust
Well one could argue a pressurestat is digital 
but that’s another topic
Well it should make one click every time it (dis)engages
If it’s doing weird stuff replace it, a mater is like.. 15€?
violet nebula
around 60€...
also the frequency of the heating , around 40 seconds.
isn't too much?
hollow gust
around 60€...
also the frequency of the heating , around 40 seconds.
isn't too m...
60€ is too much, they’re 15-20€ really. Where you at ? Avola in Germany or drtrading in NL both sell them at those prices
No depends on the bandwidth. A PID can cycle every second
Campini also good, bit smaller bandwidth 25€
violet nebula
why replacing the pressostat will fix the relay TIK sound?
I was referring to the relay price, 60 euro
hollow gust
Oh you’re saying the sound doesn’t come from the pressutestat?
But from the fill relay?
But together ?
But it’s not actually filing the boiler every time the pstat comes up?
I think you might be referring to the solenoid valve, not the relay?
As said physical actuators make some noise
hollow gust
yes, pressurestat , nothing digital in this machine.
there is sound of TIK TIK T...
But if it’s continuous like you said earlier, then it’s wrong
But if it’s just one click then yeah that’s normal
violet nebula
I will try describing again.
there is click sound when the heating starts to work and when it stops (verify it this morning)
the pressostat should make sound?
the relay can be replaced with SSR?
hollow gust
The click you hear when the heating starts and stops, is the pressostat. It shouldn’t be very loud but audible
If it is very loud, I’d just replace the pressostat since they’re cheap
There is no relay, only to fill the boiler
Switching to PID and SSR would remove the click (from the pressostat)
violet nebula
you're right!
ok, I will open the machine verify the pressostat , and order one.
what is required to switch to pid?
done that for SB machine already, not sure about HX machine.
hollow gust
you're right!
ok, I will open the machine verify the pressostat , and order one....
I wouldn’t switch to PID for an HX personally, the pstat isn’t much worse and a lot easier/ cheaper
But I would expect around the same deal as SB
violet nebula
BTW, not related to this topic, just operational of HX
the group head get to 100C, need pull lots of water to cool it down around 91C
sound right or also related to pressostat issue?
hollow gust
Yeah it does get hotter over time when idling. So flushing is necessary. You can turn down the pressure / temperature of the boiler to have the group cooler during idle (flush still required tho)
Not sure how effective / desirable that is. I think most HX e61 have it at ~1.2 bar
For more HX details ask in #pump-machines I think. I’m no HX temp expert
violet nebula
Thank you @hollow gust !!
hollow gust
Good luck ! 🙂