Hello

A couple of weeks ago I've bought an old LM Linea AV 1 Group Machine. It's a very good machine which makes incredible good coffee and I already love her

Unfortunately she also is quite thirsty when it comes to power consumption. Most of the time I only drink short blacks / espressi and I use the steam function only once or twice a day. Therefore I would like to add an extra switch, with which I could turn on/off the steam boiler separately.

Does someone have any experience with that?

Cheers,

Mac

The idea is good. The solution seems to be easy. Pressurestat controls the heating element, so maybe somewhere here?...

Since there's only a pressurestat controlling the heating element, it doesn't have to be more complicated than to insert a switch inbetween the two. Just make sure the switch you use is rated for high voltage and current!

Eventually I will add the same functionality to my Linea, but as I will also be putting in a GS/3 brainbox the solution needs to be different. I've been told simply cutting power to the heating element will make the GS/3 report errors when the temperature never rises as expected, so my switch will instead toggle between the Rt-100 probe and a static resistor reporting normal operating temperature.

It should be just a simple switch in line with the power to the steam boiler heating element. Just drill a hole in the side of the case, mount a SPST toggle switch with the appropriate power rating and off you go.

Hello,

just insert a switch to turn the heating element off.

Attention: Lineas with more groups could have a stronger heating element (e.g. 3000 W), where you can't use a normal switch, because the current is too high.

I'm doing a restauration right now, you might be interested in some pics in the german Kaffee-netz even though it's a 400 V machine:
http://www.kaffee-netz.de/reparatur-und...ion-1.html

or http://www.kaffee-netz.de/reparatur-und...post595308
Best regards
blu

Remember your switch needs to be able to handle the current of the heating element...

It would probably better to get your switch to trigger a relay that can handle the current

Hello,
you're right. I use the On/Off-knob instead:
0: off
1: everything on except steam boiler heating element
2: everything on
Best regards
blu