Took call while on site. customer stated unit is under brewing. checked and found flow rate on left brewer was low. drained water and found port clogged to solenoid. was able to clean out scale. reassembled unit and heated. calibrated flow and checked brew amount. did brew coffee to make sure unit did not overflow passed filter and proper amount was brewed. amount was ok but brewed passed filter. reset unit to factory setting and re-calibrated. adjust bypass unit is functioning ok at this time. ok for use ** No charge travel and miles per Service Manager