Maytag MEDB765FW W10240504 - Page 10

FOR SERVICE TECHNICIAN'S USE ONLY SERVICE FAULT/ERROR CODES CODE DESCRIPTION EXPLANATION AND RECOMMENDED PROCEDURE F1E1 Motor Relay Stuck On Indicates an ACU problem. • Replace the ACU. F1E3 Incorrect Controller Installed (on electric models only) Verify that the part numbers of the ACU and the User Interface are correct for the dryer model displaying the fault/error code. Replace the ACU and/or UI that does not match. F1E5 Parameter Memory Invalid ACU parameter file missing; replace the ACU. F2E1 User Interface (UI) Stuck Button Indicates a stuck button (depressed for over 20 seconds). This fault code will ONLY appear when in the service diagnostic mode. See TEST #6: Buttons and Indicators, page 21. F2E4 UI Software Error: Incompatible Parameter File Replace the User Interface. F2E5 UI Software Error: Parameter Memory Invalid Replace the User Interface. F3E1 Exhaust Thermistor Open/Shorted Indicates that the exhaust thermistor is open or shorted. If the temperature drops below 18° F (> 50k ohms), the exhaust thermistor is open. If the temperature is above 250° F (< 500 ohms), the exhaust thermistor has shorted. May occur if the P14 connector is not plugged into the ACU. See TEST #4a: Outlet (Exhaust) Thermistor, page 18. F3E2 Moisture Sensor Open/Shorted Indicates the moisture sensor strip is open or shorted. This fault code will only appear when in the service diagnostic mode. See TEST #5: Moisture Sensor, page 20. F4E1 Heater 1 Failure or Indicates no voltage detected at the heater relay. Connector Problem • Unplug dryer or disconnect power and check that the wires are plugged into the heater element(s) and the relay(s) on the ACU. F4E3 Restricted Airflow Indicates low airflow that may affect dryer performance. • Confirm that airflow system is not blocked; check lint screen, exhaust duct, exhaust fan. F4E4 L2 Line Voltage Indicates low L2 voltage (less than 50 V) is detected at the ACU. Error • Check to see if a household fuse has blown or a circuit breaker (on electric has tripped. models only) • Confirm the power cord is properly installed and plugged into the power outlet. • Unplug dryer or disconnect power and check the relay connections on the ACU. • Gas Models Only: Unplug dryer or disconnect power and check the P14 connection on the ACU (harness loopback on pins 4 & 5). F6E2 Communication Error: Communication between the ACU and UI has not been detected. UI Cannot Hear ACU • Unplug dryer or disconnect power. F6E3 Communication Error: • Check the harness continuity and connections between the ACU ACU Cannot Hear UI and UI. • Check AC and DC supplies. See TEST #1: ACU Power Check, page 12. • Replace the User Interface. • Replace the ACU. PAGE 10 DO NOT REMOVE OR DESTROY