Dacor Wall Oven U22 / L22 Error Code

U22 (upper or single oven) and L22 (lower oven) are shown as OVER TEMP on the display, but the failure is about the probes. Probe 1 and probe 2 cannot be more than 50°F apart when the oven is between 75°F and 100°F on the rise during a cooking or cleaning operation.

A second limit

Between a center-of-cavity temperature of 520°F and 600°F, the probe 1 cook and clean amplifiers and the probe 2 cook and clean amplifiers must also be within 50°F of each other.

What the manual means by the failure

One of the probes is out of calibration or bad without being open or shorted.

What still works

Cooking is available. Self-clean is not available until the code is cleared, and the manual says to call for service.

What a technician checks

A technician verifies that the probe cables are connected properly and that the probes read correctly using the A/D screen in service diagnostics.

Which ovens

Dacor 27- and 30-inch single and double wall ovens described in the Dacor Wall Oven Service Manual.

Related probe codes

U30 means probe 1 is open, while U32 means probe 2 is open. U21 is the self-clean over temperature error.

Dacor wall oven service in Los Angeles

For service on a Dacor wall oven in Los Angeles, dial (310) 742-1907. Share whether U22 or L22 appeared, the model number and whether a cooking or cleaning operation was running. See wall oven repair.

Source: Dacor Wall Oven Service Manual, Appendix B Error Code Troubleshooting Guide