What Does Monogram Microwave Error Code F5 Mean?
The F5 error code on a Monogram microwave indicates a shorted humidity sensor — the opposite of F4. Where F4 means the sensor circuit is open (broken), F5 means the sensor resistance is near zero (shorted). Both conditions prevent the humidity sensor from providing accurate readings for automatic cooking programs.
Common Causes of the F5 Error Code
- Shorted humidity sensor element – Internal failure of the sensor’s resistive element.
- Moisture on sensor contacts – Heavy steam condensation on sensor connections can cause a temporary short.
- Damaged sensor wiring – Wires routed near sharp edges can have insulation damaged, creating a short circuit.
How to Troubleshoot the F5 Error Code
- Allow drying – If the microwave was recently used for high-steam cooking, allow the interior to dry with the door open for an hour before retesting.
- Reset the microwave – Unplug for 60 seconds and retry. If F5 immediately returns, the sensor has failed.
When to Call a Professional
The F5 error requires humidity sensor replacement. Contact our Monogram microwave repair team at 844-752-7887 for professional repair using factory-certified Monogram parts.