Carrier 40WAW007 Installation And Maintenance Instructions Manual

Also see for 40WAW007: Installation and maintenance instructions

Table 3 -- LED Display IndicatorsERROR CODE MODE/STATUS[NO ERROR]E0E1E2E3E4E7EdEEFELED DISPLAYOperation Light ONOperation Light OFFOperation Light Flashing Slow*Timer Light ONTimer Light OFFDefrost / Fan Light ON (40WAW024 only)Defrost / Fan Light OFF (40WAW024 only)Defrost / Fan Light Flashing Fastt40WAW024 only)Timer Light Flashing FastOperation Light Flashing FastStartingShutdownStandbyTiming ONTiming OFFSystem Defrost ONSystem Defrost OFFHeating / Cooling Mode Conflict ErrorDefrost / Fan Light Flashing Slow40WAW024 only)Alarm Light Flashing Slow (40WAW024 only) Outdoor Unit ErrorAlarm Light Flashing Fast (40WAW024 only) Water Level ErrorOperation and Timer Lights Flashing Fast Indoor Unit Turned ON But Does Not Have An Address*Flashing Slow = Flashing once per second.tFlashing Fast = Flashing twice per second.Table 4 -- TroubleshootingERROR DISPLAYCommunication 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)E0E1E2, E3,E4Defrost Light Flashing Fast (Heating/Cooling Mode Conflict Error)(40WAW024 only)Timer Light Flashing Fast(Communication Error)Operation Light Flashing Fast(Sensor Error)POSSIBLE 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.Chip or PC board fault.Defrost Light Flashing Slow(EEPROM Error)(40WAW024 only)Alarm Light Flashing Slow (OutdoorUnit Error)(40WAW024 only)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.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 PC board.E7Outdoor unit fault. Refer to outdoor unit troubleshooting guide.EdLoose 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.Indoor unit without address.Alarm Light Flashing Fast (WaterLevel Error)(40WAW024 only)EEFE Operation and Timer Lights FlashingFast Together(Address Error)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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