What iD Means
iD on a Bosch French door refrigerator refers to the ice duct sensor, which the repair manual abbreviates IDUCT and locates at the evaporator. It reports the same two states as the other probes, a disconnection shown as Lo or a short shown as Hi. The duct this sensor watches is the path that carries cold air to the ice maker, so an unreliable reading shows up first as ice production that has become erratic.
Common Causes of iD
- Ice duct sensor failed open or shorted
- Connector at the main board unseated
- Ice build-up around the duct affecting the sensor mounting
🔧 One Safe Check You Can Try
Check the ice maker compartment for a build-up of fused ice around the air inlet and clear it by hand once the appliance has been switched off at the socket or breaker. A duct packed with ice is a symptom worth removing before the visit.
⚠ Why You Shouldn't Go Further Than That
- The duct and its damper sit behind the ice maker assembly, which has to come out before anything can be reached.
- The sensor is mounted at the evaporator, where refrigerant tubing runs close enough that a slipped tool means sealed-system work.
- Chipping fused ice out with a sharp tool punctures the duct liner, after which cold air leaks instead of reaching the ice maker.
- The ice duct shares a board connector with other sensors, so disturbing it can create codes that were not there before.
Opening a panel to inspect or repair something yourself doesn't automatically cancel your manufacturer's warranty — but it can risk accidental damage, and some manufacturers do have specific service conditions. Check your product's warranty terms, or ask us, before deciding.