Skip to main content
Error code reference
Monogram Microwave Error Codes
8 error codes documented with diagnostic procedures.
Have your model number? Get codes specific to your unit.
EndCooking or defrost cycle is complete; oven beeps once a minute as a reminder until the…ErrorDuring Sensor Cook, Sensor Reheat, Sensor Beverage, or Sensor Popcorn program, the door…HOTThe temperature inside the oven is greater than 200°F; sensor cooking features will not…LThe control panel has been locked via the Child Lock-Out feature, preventing the…LOCKEDThe control panel has been locked and an 'L' is displayed, preventing operation.PRObETemperature probe is missing, not plugged in securely, or inserted when using a program…RESETDisplayed after power is first applied or after a power outage; indicates the oven clock…SENSOR ERRORDuring a sensor cooking program (Popcorn, Beverage, Reheat, Chicken/Fish, Potato or…
Get the full diagnostic procedure for any code
Step-by-step tests, expected values, wiring diagram references, and verified part numbers.
Get Started $9.95 3-day pass$29/month for all brands and Max AI diagnostics, with 70 Max messages a day.
More Monogram error codes
Common questions
How do I find the error code on my Monogram Microwave?
Most Monogram microwaves show the code directly on the control panel display. If your model has no display, it can be read by entering diagnostic mode with the key sequence for your model. The full procedures include model-specific instructions for reading codes.
Are these codes specific to my model?
The codes here apply broadly to Monogram microwaves. Meanings and diagnostic steps can vary by model and production year, so enter your model number for model-specific information and procedures.
What do I do if my code is not listed?
Some codes are model-specific or only appear in diagnostic mode. Enter your model number to get codes specific to your unit, or contact us. We update the database continuously from manufacturer service documentation.
How much does it cost to access the full diagnostic procedures?
A 3-day pass is $9.95 one-time and gives full access to all brands, codes, and procedures. Monthly access is $29/month for all brands, codes, and procedures, plus Max AI diagnostics with 70 Max messages a day.