Elizabeth owners - I am noticing that I am getting fairly large fluctuations in the steam boiler temp. Mine is set on 140 degrees and many times I will see that is is hovering between 125 and 130. Specifically after pulling a steam- assisted shot (3s pre-infusion, 3s steam pressure, 9bar). After pulling this shot, I always end up with a steam boiler in the 125-130 range. This range will also happen when the machine has been on for a while doing nothing and the temp will just drift downward. Much larger fluctuation than the service boiler. The wand just doesn't perform as well as when it's at 140. It appears that it needs to go below 125 before the steam boiler "kicks in". Sometime I can be waiting several minutes for the boiler to recover after I have pulled my shot. Anyone else experiencing this behavior? I have tried both factory and David's settings and notice similar results.

@"limelight"#p3048 - ok. So can you confirm your values for: * KPs * KIs * KDs * Bs * Es And can you please confirm which water are you using. (Sorry if I’ve asked this before) Many thanks.

@"MediumRoastSteam"#51 - Right now I am back to factory in an attempt to troubleshoot. But I have also used Corbey's settings and have had similar results (hence going back to factory). In terms of water, right now I am just using filtered water until my shipment of Third Wave Water treatment comes in. ![](https://i.imgur.com/wVJU8uu.png "Elizabeth Settings")

> @"limelight"#p3058 In terms of water, right now I am just using filtered water Which filter, how hard is the water and how long have you had the machine, how much water have you put through the jug, how many filters have you gone through and when was the last time you changed your water filter?

@"MediumRoastSteam"#p3060 It is a relatively new machine - 2 weeks old. I have filled the tank probably 3-4 times in total. It is on its first in-line filter that came with the machine.

> @"limelight"#p3061 It is a relatively new machine - 2 weeks old Could you please video what you are seeing just in case I’m missing the obvious, please? It shouldn’t do that.

Makes me wonder if the solenoid between the steam and brew boiler isn't closing properly.

@"DavecUK"#p3068 - but if this was the case, wouldn’t they PID try to keep the set temperature? It’s strange it allows to go down 10C if not more before reacting.

@"MediumRoastSteam"#51 @"DavecUK"#1 - Alright, so I don't think it has anything to do with the steam pre-infusion. I did a cold start up for the machine. Both boilers hit the desired temps. However the steam boiler start to gradually decrease in temp after hitting 140. After about 20 mins from initial startup, it had hit 140 and was slowly going down to 132. https://youtu.be/PpEp-jh-fmY Then after a few more minutes it was down to 129: https://youtu.be/u20P_15-gL4 After a few more, down to 126: https://youtu.be/Vq47B0gJVoQ After it cools to 124, I can very faintly here the steam boiler turn on and it gradually climbs back to the target temp of 140 (takes about 1 min): https://youtu.be/VscxL0iev80

@"limelight"#p3071 - and you are 100% sure the values you quoted in advanced settings are the values you have keyed in? I think you are better off troubleshooting with Dave’s suggestions, which is basically an on/off switch of the steam boiler. Could you please use Dave’s values and then report back? If the same happens, something is not right.

@"MediumRoastSteam"#51 - I just took these videos with everything back to the factory settings (holding plus and turning the machine on). I was having a similar issue with Dave's recommended settings, so I had put everything back to stock to see what was going on. - UPDATE: I will go back to Dave's settings and report back. - UPDATE 2: I went back to all of Dave's settings and it is operating as expected with the steam boiler immediately returning to the target temp (both after using the wand as well as steam pre-infusion shot). I will provide an additional update tomorrow to see if it was something transient or otherwise fixed by re-keying in the settings. I don't remember the steam boiler having that big of a swing even with the factory settings, but perhaps it does with factory.

Lelit Elizabeth Steam Boiler Temps

LB_PEEP_5

Reporting back for any who might be curious: with some trial and error of setting gradually higher service boiler temperatures, I found that with the brew boiler between 90-93 C, the max temperature the service boiler can be and hold temp is 142 C. At 143 and above, the abnormal swings down and then back up after a prolonged time creep back in, and as others have guessed i think there probably is some triggering of an over temp system causing the problem. However, so long as you keep the steam boiler 142 and below, it seems to be working beautifully (and making some gorgeously silky milk for latte art). Thank you all again for the troubleshooting!

dndrich

Remember that at 135 or so you are still well above 2 bar steam pressure. That is more than enough for a home machine. Plenty of power. And this machine can do that shot after shot with quick recovery.

Greenestbean

Had to make an account here just to let you all know that dropping my steam temp to 135 fixed my rapidly dropping steam capacity. It was set to 145 and would be very powerful and then immediately start falling to 120.

Now I start at 135 and end up at 128! I used factory settings for PID except Bs set to 1.

Thanks!

MediumRoastSteam

Greenestbean - is this for a 110V machine?

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