Carrier 40WAF0012 Installation And Maintenance Instructions Manual

Table 4- LED Display IndicatorsERROR CODE MODE_TATUS[NO ERROR]E0E1E2E3E4E7E6EdEEFELED DISPLAYOperation Light ONOperation Light OFFOperation Light Flashing Slow*Timer Light ONTimer Light OFFDefrost / Fan Light ONDefrost / Fan Light OFFDefrost / Fan Light Flashing FasttTimer Light Flashing FastOperation Light Flashing FastDefrost / Fan Light Flashing SlowTimer Light Flashing SlowAlarm Light Flashing SlowAlarm Light Flashing FastOperation and Timer Light Flashing Fast*Flashing Slow = Flashing once per second,tFlashing Fast = Flashing twice per second.Table 5 -- TroubleshootingERROR DISPLAYStartingShutdownStandbyTiming ONTiming OFFSystem Defrost ONSystem Defrost OFFHeating / Cooling Mode Conflict ErrorCommunication Error Between Indoor and Outdoor UnitCheck Indoor Ambient Temperature Sensor (T1)Check Evaporator Temperature Sensor (T2)Check Evaporator Outlet Temperature Sensor (T2B)EEPROM Error (Data Storage)Fan Motor ErrorOutdoor Unit ErrorWater Level ErrorIndoor Unit Turned ON But Does Not Have An AddressEOE1E2, E3,E4E6E7EdEEFEDefrost Light Flashing Fast (Heating/Cooling Mode Conflict Error)Timer Light Flashing Fast(Communication Error)Operation Light Flashing Fast(Sensor Error)Timer Light Flashing SlowPOSSIBLE CAUSESSystem is in cooling or fan only mode andheating signal is received from a unit on thesystem,System is in heating mode and cooling sig-nal is received from a unit on the system,Signal wires are short-circuited ordisconnected,Signal wire order is incorrect,Signal wires crossing over high voltage_ower wires.Signal wire close to electromagnetic source.Signal wire length exceeds 360 ft.PC board fault.Loose connection at port on PC board.Sensor is short- circuited.PC board fault.DC motor fault.PC board fault.Chip or PC board fault.POSSIBLE SOLUTIONSAll units should be in cooling mode for system tostay in cooling mode,All units should be in heating mode,Check or reconnect signal wire,Defrost Light Flashing Slow(EEPROM Error)Alarm Light Flashing Slow (Outdoor Outdoor unit fault, Refer to outdoor unit troubleshooting guide,Unit Error)Loose connection or disconnected at porton PC board.Water level float is stuck.Trap slope is too steep.Drain pipe is too long.Drain pump faulty.Alarm Light Flashing Fast (WaterLevel Error)Operation and Timer Light FlashingFast Together(Address Error)Indoor unit without address,Correct signal wire order.Separate and distance the signal wire from highvoltage power wires.Distance signal wires from electromagneticsource.Reduce the signal wire length.Replace PC board.Tighten the connection at port on PC board.Using multi-meter, measure resistance of the sen-sor. If the resistance is < 100 ohms, change thesensor.Replace PC board.Replace DC motor.Replace PC board.Replace PC board.Tighten the connection or reconnect at port on PCboard,Inspect the float,Adjust the trap slope,Adjust the length of drain pipe,Replace the drain pump,Run automatic addressing option at the outdoorunit,Use remote wireless or wired controller to re-address indoor unit,]!

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