TC feedback Ccime has been ringing non stop. Tripped Chime CB - OK. ~~~~~ 3650 TC feedback Chime has been ringing non stop. Tripped Chime CB - OK.  3650 found desk console chime push button contacts high resistance. Replaced 2x contacts & base plate - Done. Function check but chime still intermittently ring non-stop. Checked B/s push button - OK. Checked door amp - OK. Checked CMAR-01 relay found intermittent high resistance. Replaced CMAR-01 relay. Function test 20x & door chime did not ring non-stop.  Au TK 43992