Troubleshooting guide

PAGE 7
FOR SERVICE TECHNICIAN’S USE ONLY
DO NOT REMOVE OR DESTROY
CODE DESCRIPTION EXPLANATION AND RECOMMENDED PROCEDURE
F1E1
Cycle Control Unit
(CCU) Problem
Indicates a CCU problem.
• Verify all connections to and from the CCU.
• See TEST #1: CCU Power Check, page 9.
.
F2E1
User Interface (UI)
Problem (stuck button)
Indicates a stuck button (depressed for over 20 seconds) or UI
mismatch. This fault code will ONLY appear when in the service
diagnostic mode. See TEST #6: Buttons and Indicators, page 19.
.
F2E2
User Interface
Appears if UI cannot read EEPROM software from UI.
• Verify all connections between CCU and UI.
• Replace the UI.
F2E3
User Interface
Software Error 2
Appears if main control EEPROM is not programmed correctly.
• Replace the UI.
F3E1
Exhaust Thermistor
Open
Indicates that the exhaust thermistor is open. Temperature drops
below 18° F (> 50k ohms). See TEST #4a: Thermistors, page 15.
F3E2
Exhaust Thermistor
Shorted
Indicates that the exhaust thermistor has shorted. Temperature
above 250° F (< 500 ohms). See TEST #4a: Thermistors, page 15.
F3E3
Inlet Thermistor Indicates that the Inlet Thermistor is open. Temperature drops
below 18° F (>245k ohms). See TEST #4a: Thermistors, page 15.
F3E4
Inlet Thermistor Indicates that the Inlet Thermistor is shorted. Temperature above
391° F (< 328 ohms). See TEST #4a: Thermistors, page 15.
F3E5
Inlet and Exhaust
Thermistor Open
Indicates that the Inlet and Exhaust Thermistors are open.
Will occur if the P14 connector is not plugged into the CCU.
F3E6
Moisture Sensor
Open
Indicates the moisture sensor strip is open. This fault code will
only appear when in the service diagnostic mode. See TEST #5:
Moisture Sensor, page 18.
.
F3E7
Moisture Sensor
Shorted
Indicates that the moisture sensor strip has shorted. This fault
code will ONLY appear when in the service diagnostic mode.
See TEST #5: Moisture Sensor, page 18.
.
F4E1
Heater Relay or
Connector Problem
Indicates no voltage detected at the heater relay. This fault code
appears ONLY when in the Diagnostic Te st Mode.
• Unplug dryer or disconnect power and check that the wires are
plugged into the heater element(s) and the relay(s) on the CCU.
F4E3 Restricted Air Flow
Indicates low air flow that may affect dryer performance.
• Confirm that airflow system is not blocked, check lint screen,
exhaust duct, exhaust fan.
.
F4E4 L2 Line Voltage
Error
L2 indicates low L2 voltage (less than 30 V) is detected at the CCU.
• Check to see if a household fuse has blown or a circuit breaker
• Confirm the power cord is properly installed and plugged
• Check the relay connections on the CCU.
• Gas Models Only: Check the P14 connection on the CCU.
F6E1
F6E2
Communication Error
UI to CCU
Communication Error
CCU to UI
Communication between the CCU and UI has not been detected.
• Check the harness continuity and connections between the CCU
• Check AC and DC supplies. See TEST #1: CCU Power Check,
.
• Replace the User Interface.
• Replace the CCU.
SERVICE FAULT/ERROR CODES
Software Error 1
Open
Shorted
has tripped.
into the power outlet.
(Harness loopback on Pins 4 & 5)
page 9.
and UI.