What E223 Means
E223 is the lower cavity probe reading below the allowable limit on a Bosch double oven, and that cavity stops heating until the probe is taken out. The manual's first suggested check is whether the probe was pushed into frozen food, which reads legitimately low. After that it points at probe resistance, loose connections and pinched wiring.
Common Causes of E223
- Probe pushed into frozen or partly frozen food
- Probe element failed and reading below range
- Loose connection or pinched wiring in the lower cavity probe circuit
🔧 One Safe Check You Can Try
Pull the probe, let it come to room temperature and try again with thawed food. Frozen food is the first thing Bosch asks technicians to rule out and the only cause you can eliminate without tools.
⚠ Why You Shouldn't Go Further Than That
- The commonest explanation is a use pattern, and opening an appliance for it achieves nothing.
- Probe resistance needs comparing with Bosch's published value rather than judged by eye.
- Pinched wiring behind the lower cavity is reached only by moving a heavy stacked appliance out of its opening.
- A cavity that has stopped heating offers no way to confirm a repair until the work is already done.
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.