A Whirlpool Microwave displays a ERR8 error code when a EEPROM Error has been detected by the internal electronic diagnostics.

A Whirlpool Microwave displays a ERR9 error code when a Option Error has been detected by the internal electronic diagnostics.

A Whirlpool Microwave displays a ERR-D error code when a Overheat Error has been detected by the internal electronic diagnostics.

A Whirlpool Microwave displays a F6-E5 error code when a Cavity Size Error has been detected by the internal electronic diagnostics.

A Whirlpool Microwave displays a F1-E2 error code when a User Interface Error has been detected by the internal electronic diagnostics.

A Whirlpool Microwave displays a F1-E0 error code when a User Interface Error has been detected by the internal electronic diagnostics.

A Whirlpool Microwave displays a F1-E4 error code when a Power Relay Error has been detected by the internal electronic diagnostics.

A Whirlpool Microwave displays a ERR1 error code when a Power Relay Error has been detected by the internal electronic diagnostics.

A Whirlpool Microwave displays a F4-E9 error code when a Smart Pop Error has been detected by the internal electronic diagnostics.

A Whirlpool Microwave displays a F3H error code when a Humidity Sensor Error has been detected by the internal electronic diagnostics.