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Andreja Rapid Cycling
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melchionda
Senior Member


Joined: 3 Jul 2013
Posts: 8
Location: Mill Valley
Expertise: Just starting

Posted Sun Sep 1, 2013, 6:09am
Subject: Re: Andreja Rapid Cycling
 

SStones Said:

Cold pressure in the boiler (Is there a boiler pressure gauge?) from overfilling or otherwise.
A faulty power board, either thinking there is no water available or not closing a relay properly. (If applicable)
A lack of adequate flow from the reservoir triggering the powerboard to notice the lack of water.
Water without enough mineral content(Appearing as lack of available water). (Unlikely if not recurring)

Instead of shutting it off and on, when not heating, open the steam valve for 5 seconds...  Does that get it heating?  If so, you've released the cold pressure and discovered at least one of the problems.

Posted August 27, 2013 link

Interesting ideas...   Here is what I was able to test based on your input

Cold pressure- I have two gauges. There is a "high" one that reads to about 16 bar and a "low" one that reads to about 3 bAr.  This morning the upper one was reading 9 bar with the machine cold.   The lower gauge was at 0.  I turned the machine on and it clicked several times as if to try to turn on the heater - the red light flashed with the clicks.  Then the pump came on.   I let it run for a out ten seconds but then shut the machine off because I was afraid the pump would over fill the boiler again and the interior of the machine would get sprayed and flooded - (it's happened several times)

I then turned the machine on again, I got the clicks again and with the upper gauge still reading 9bar I opened the steam and hot water taps.  Nothing happened.  No steam or water came out, the pressure didn't change, the pump didn't come on.

I then turned it off then on again and got more clicks and finally the heater turned on consistently and cycled at its proper pace - now that the new p-stat is installed the machine cycles at the right cadence but the machine either continues to overfill and/or the heater doesn't go on when I first turn the machine

Mineral content of the water- I have t tested this yet but was going to buy a bottle of crystal geyser water to see if that made a difference.  

Someone else asked if the main power switch was "lazy".  Not sure how you would diagnose that. However the switch is brand new as I just had a three way switch installed.
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