ECM Synchronika, 4 years trouble free, not plumbed in, using bottled water in reservoir
Then water was found pooling under the machine. It was the plastic T connector for the OPV pipes which had melted into a crispy brown mess. The overflow water could have gone anywhere, I replaced the part.
During my repair I also saw some evidence of previous water presence in the corner where the reservoir valve sits. and watermarks on the steel reservoir frame where the plastic water reservoir plugs in. It looked as though water had flowed out of the open corner of the reservoir frame and gathered underneath that corner - water stains and rusty screw heads were visible.
I repaired the valve on the reservoir plastic tank which had a spring that was stuck in the open position. It no longer leaks.
Although I could see no actual water I gave it a week with the covers off to let the air get to it.
I was still getting some gurgling and overflow water through the outlet below the E61 group. Much reduced, though.
A week or two later I turned the ECM on, and 5 mins or so into its warm up it tripped the main relay on the house Consumer Panel.
It did this twice that day,
I had the covers off again, but saw no water leaks, no indication of overheating wiring, There is evidence of deposits on the reservoir/plumbed in switch below the overflow, but this looks to be from the T piece problem, now fixed, and no sign of water around it,
I removed the pressure valve from the service boiler and cleaned out the plunger/seal mechanism. It looked pristine, but I cleaned and replaced it anyway, The ECM seemed to be heating up ok, so I put the covers back on and started it off.
Five minutes or so into warmup it tripped the main relay for the third time.
Can anybody suggest where I should be looking in order to fix this, please? My espresso habit has been left cold turkey for over a week now!
Im a bit anoyed that a cheap 19p plastic part was used in between two hot boilers, and has probably been a major factor in this problem. Especially when you consider the quality of the rest of the machine is top notch,
Thank you in anticipation for any ideas you could share