Select the questionable point
Choose the reading, input, output or communication point that does not look right. The app will isolate the problem to the device, placement, wiring, configuration, board channel or controlled component.
POINT TO DIAGNOSE
Safety: Sensors and controls may share an enclosure with hazardous voltage, moving equipment, hot piping and pressurized refrigerant. Use the unit schematic, lockout/tagout and required PPE. Never open a refrigerant circuit solely to test a transducer.
Fast path: Select the questionable point and symptom. Enter only readings or checks already available; blank and Not checked entries are accepted.
WHAT DOES iCOM SHOW?
Optional. Type the event exactly as displayed.
SENSOR AND SIGNAL CHECKS
Primary finding
Complete the conditions first
iCOM / Reference—
Difference—
Point Type—
MOST LIKELY CAUSES
DIAGNOSTIC ORDER
Field reminder: Prove the device and field wiring before condemning an iCOM input/output board. Record configuration and offsets before changing them, and disable diagnostics manual mode after the controlled test.