Kenmore Microwave Error Code ERROR
Microwave sensor cooking error
Microwave sensor cooking error — the sensor did not detect vapor properly, or an invalid weight/quantity was entered outside the allowed range.
First step from the service manual
Press STOP and cook manually using time cook mode.
The complete diagnostic procedure includes additional test steps, resistance specifications, wiring diagram references, and component test points.
Get the full diagnostic procedure for ERROR.
- Step-by-step tests with expected resistance, voltage, and continuity values
- Wiring diagram references and connector pinouts from the OEM service manual
- Verified part numbers when replacement is required
$29/month · Cancel anytime · Or $9.95 3-day pass
What ERROR means on a Kenmore microwave
The ERROR code on a Kenmore microwave is specifically tied to the sensor cooking system. This system uses a humidity sensor, sometimes called a vapor or steam sensor, to detect moisture released by food during cooking. The sensor monitors the rate at which steam is emitted and uses that data to automatically adjust cooking time and power levels. When the sensor fails to detect an adequate vapor signal within the expected window, or the signal falls outside the acceptable parameters, the unit throws this error and halts the sensor cooking cycle.
There are two primary triggers for this code. The first is a sensor detection failure, where the humidity sensor does not register a vapor reading at all, or registers one too late or too early in the cycle. This can happen when the food quantity is very small, when the dish is sealed too tightly allowing no steam to escape, or when the sensor itself is contaminated with grease or food residue. The second trigger is an input error, where a weight or quantity value was entered that falls outside the range the sensor cooking program accepts. Entering a value that is too high or too low for the selected sensor cook function will immediately generate this code.
In most cases, the error does not indicate a catastrophic component failure. Grease or residue buildup on the sensor window is a frequent cause and is correctable with cleaning. If the error recurs consistently even after cleaning and using appropriate food quantities, the humidity sensor itself may need to be tested or replaced. Until the root cause is resolved, using the manual time cook mode is the recommended workaround.
Source: manufacturer service documentation.
Common causes of ERROR
- 01
Grease or residue on the humidity sensor
Wiring / connectionA buildup of grease or food splatter on or near the humidity sensor window can block its ability to detect steam accurately. Inspect the interior cavity, particularly near the top or side walls where sensors are typically located, and clean with a damp cloth.
- 02
Invalid weight or quantity entered
Wiring / connectionEntering a food weight or quantity outside the accepted range for the selected sensor cook function will immediately trigger this error. Check the cookware or food amount against the ranges listed for that specific sensor cooking program.
- 03
Food quantity too small or too large for sensor detection
Wiring / connectionVery small food portions may not generate enough steam for the sensor to register a valid reading, while very large portions may produce steam too rapidly. Adjust the portion size or switch to manual time cooking for unusually small or large amounts.
- 04
Covered or sealed dish blocking steam release
Wiring / connectionIf food is covered too tightly with plastic wrap or a sealed lid, steam cannot escape into the cavity for the sensor to detect. Use vented covers or leave a gap to allow proper steam release during sensor cooking.
- 05
Faulty humidity sensor
Part replacementIf the error appears consistently across multiple sensor cooking attempts with proper food quantities and a clean interior, the humidity sensor itself may have failed. This requires component-level testing and likely sensor replacement.
Frequently asked questions about ERROR
What does ERROR mean on a Kenmore microwave?
How do I fix the ERROR code on my Kenmore microwave?
Is it safe to use my Kenmore microwave after the ERROR code appears?
Will resetting my Kenmore microwave clear the ERROR code?
How much does it cost to repair a Kenmore microwave showing the ERROR code?
78,000+ service manuals · 160,000+ error codes · 55+ brands
Get Started$29/month · Cancel anytime · Or $9.95 3-day pass