EXPOBAR MINOREE 3 – e61 SPANISH CLONE OVERFILLING STEAM BOILER

This is a nice E61 single group lever machine. It has two big boilers, with the coffee boiler PID controlled. Apart from some cheap generic components (like the flow meter) its a great machine.

This one was flooding the customers bench as the pump just continuously ran the the pump.

Actions
1. Cleaned level probe.
2. Checked earth to steam boiler was a good circuit.
3. Opened the level control board and found the main 470uf cap was gone. No test required. The transformer was ok, but this capacitor certainly could be upsetting the voltage comparitor on this board. So I replaced it and away we went, the pump stopped when the water reached the level probe.


Repair of Expobar Control Board
Remove and clean Water Level Probe on Steam Boiler
Classic Popped Capacitor
New capacitor installed

Take home point. Before you purchase an over priced new level control board. Check your old one, suspect the main filter cap and the primary side of the transformer. Its often a quick, cheap easy repair.

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