Indesit 146 De Flashes with 1 2 4 F13?

Dear Board,
few days ago my machine began to flash 1 2 4 and pump after a few secs. on any program i adjusted. Doe to lack of guaranteetime and some research on this cool board, i found a lose cable on a connector to the thermistor cable. Fixed it with new crimb on connector - but i have still the same error code. ;( Any ideas ? Is there a resetfunction or so?
best rgs.
Mandi