Aren't these machines great! The overtemp cutoff switches are the dealies on top of the boilers with the tiny press buttons on top and a screw on each side. They click and cut power if a boiler ever goes over temperature. After n-years the plastic on mine all turned to dust.
Oh, an important quality of life item I forgot, probably you've done it but: the portafilter seal in the grouphead... I got a silicone one from cafelat about 4 years ago. Still going strong. Highly recommended. The black rubber ones would turn into charcoal. Wish you luck with that brew pressure problem. I hope you are right that it is the problem. Does the pump sound change or anything? I'm sort of skeptical but I hope you're right. Could it be you have an air leak in the line? Or some sort of blockage? Once I had an intermittent brew pressure problem like you describe and it was the water intake hose was getting squeezed against the machine lid so not enough water getting to pump. On Tuesday, January 14, 2020 at 1:16:29 PM UTC-8, Richard wrote: > > Eric, >> > Thanks, > Where are the overtemp cutoff switches? I should look at them. > > I had bought a pack of 100 vac relief o-rings from Amazon that are > supposed to be good at 400 degrees. > I replaced 1. > I recently replaced the pressure stat. > I had rebuilt my brew head earlier this year with a kit of springs & seals > from WLL. Did not solve the reason I did that. Instead I found a loose wire > going into the PID that was the problem . > I have checked the brew leverl seal. > My PID screen is starting to lose segments from first digit. Not a big > problem. > > I ordered a new pump assembly kit a few days ago. Brew pressure during > shots is oscillating. Goes up to 9 and then down to 5 and then back to 9. I > suspect the pump is starting to fail. > -- You received this message because you are subscribed to the Google Groups "Brewtus" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/brewtus/ec5d92b6-4c8a-4986-9a95-0c66e32fcc61%40googlegroups.com.
