Carrier 40WAD009 Installation And Maintenance Instructions Manual

Contents

11Table 3 — LED Display Indicators*Flashing Slow = Flashing once per second.†Flashing Fast = Flashing twice per second.Table 4 — TroubleshootingERROR CODE LED DISPLAY MODE/STATUS[NO ERROR]Operation Light ON StartingOperation Light OFF ShutdownOperation Light Flashing Slow* StandbyTimer Light ON Timing ONTimer Light OFF Timing OFFDefrost / Fan Light ON System Defrost ONDefrost / Fan Light OFF System Defrost OFFE0 Defrost / Fan Light Flashing Fast† Heating / Cooling Mode Conflict ErrorE1 Timer Light Flashing Fast Communication Error Between Indoor and Outdoor UnitE2Operation Light Flashing FastCheck Indoor Ambient Temperature Sensor (T1)E3 Check Evaporator Temperature Sensor (T2)E4 Check Evaporator Outlet Temperature Sensor (T2B)E7 Defrost / Fan Light Flashing Slow EEPROM Error (Data Storage)E6 Timer Light Flashing Slow Fan Motor ErrorEd Alarm Light Flashing Slow Outdoor Unit ErrorEE Alarm Light Flashing Fast Water Level ErrorFE Operation and Timer Lights Flashing Fast Indoor Unit Turned ON But Does Not Have An AddressF0 Wired Remote Controller Only (40WA900023) Communication Error Between Indoor Unit and WiredRemote ControllerERROR DISPLAY POSSIBLE CAUSES POSSIBLE SOLUTIONSE0 Defrost Light Flashing Fast (Heating/Cooling Mode Conflict Error)System is in cooling or fan only mode andheating signal is received from a unit on thesystem.All units should be in cooling mode for system tostay in cooling mode.System is in heating mode and cooling sig-nal is received from a unit on the system. All units should be in heating mode.E1 Timer Light Flashing Fast(Communication Error)Signal wires are short-circuited ordisconnected. Check or reconnect signal wire.Signal wire order is incorrect. Correct signal wire order.Signal wires crossing over high voltagepower wires.Separate and distance the signal wire from highvoltage power wires.Signal wire close to electromagnetic source. Distance signal wires from electromagneticsource.Signal wire length exceeds 360 ft. Reduce the signal wire length.PC board fault. Replace PC board.E2, E3,E4Operation Light Flashing Fast(Sensor Error)Loose connection at port on PC board. Tighten the connection at port on PC board.Sensor is short-circuited.Using multi-meter, measure resistance of the sen-sor. If the resistance is  100 ohms, change thesensor.PC board fault. Replace PC board.E6 Timer Light Flashing Slow DC motor fault. Replace DC motor.PC board fault. Replace PC board.E7 Defrost Light Flashing Slow(EEPROM Error) Chip or PC board fault. Replace PC board.Ed Alarm Light Flashing Slow (OutdoorUnit Error) Outdoor unit fault. Refer to outdoor unit troubleshooting guide.EE Alarm Light Flashing Fast (WaterLevel Error)Loose connection or disconnected at porton PC board. Tighten the connection or reconnect at port on PCboard.Water level float is stuck. Inspect the float.Trap slope is too steep. Adjust the trap slope.Drain pipe is too long. Adjust the length of drain pipe.Drain pump faulty. Replace the drain pump.FEOperation and Timer Lights FlashingFast Together(Address Error) Indoor unit without address.Run automatic addressing option at the outdoorunit.Use remote wireless or wired controller to re-address indoor unit.F0 Wired Remote Controller Screen Incorrect signal wiring between indoor unitand wired remote controller.Correct signal wiring between indoor unit andwired remote controller as per wiring diagram pro-vided in installation manual.

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