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Carrier 48HJD005-007 EconoMi$er Flash Code Identification, EconoMi$er Troubleshooting, Critical

Models: 48HJD005-007

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Table 33 — EconoMi$er Flash Code Identification

		FLASH CODE	CAUSE	ACTION TAKEN BY ECONOMI$ER
		Constant On	Normal operation	Normal operation.
		Constant Off	No power	No operation.
		Continuous	CONFIG button pushed and held	Outdoor air damper is stroked fully open, then closed
		Flash	between 3 and 9 seconds	(automatic test procedure takes 3 minutes to complete).
Fault		Flash One	Control board fault	System shutdown.
		Flash Two	Thermostat fault (i.e., Y2 without Y1)	System shutdown until corrected.
		Flash Three	Actuator fault	Revert to mechanical cooling only.
Critical				Continue operation with damper at minimum position.
		Flash Four	Supply air temperature sensor fault	Continue operation with damper at minimum position.
		Flash Four	Supply air temperature sensor fault	Revert to mechanical cooling only.
				Revert to mechanical cooling only.
		Flash Five	Outdoor air temperature sensor fault	Disable mechanical cooling lockout.
				Disable mechanical cooling lockout.
		Flash Six	Outdoor air humidity sensor fault	Continue operation with dry bulb or dry bulb differential switchover.
Fault		Flash Seven		Continue operation with single enthalpy EconoMi$er
Fault		Flash Seven	Return air temperature sensor fault	switchover or dry bulb EconoMi$er switchover (without
Critical				humidity sensor).
				humidity sensor).
		Flash Eight	Return air humidity sensor fault	Continue operation with single enthalpy, differential dry
		Flash Eight	Return air humidity sensor fault	bulb, or dry bulb EconoMi$er switchover.
Non-				bulb, or dry bulb EconoMi$er switchover.
		Flash Nine	Carbon Dioxide (CO2) sensor fault	Continue operation without ventilation control.
		Flash Ten	Onboard adjustment potentiometer fault	Continue operation with default potentiometer settings.
		Flash Ten	Onboard adjustment potentiometer fault	Continue operation with default potentiometer settings.

Table 34 — EconoMi$er Troubleshooting

	PROBLEM	POTENTIAL CAUSE	REMEDY
Damper Does Not		Indoor (Evaporator) Fan is	Check to ensure that 24 vac is present at Terminal C1 (Common Power)
Open		Off	on the IFC (Indoor Evaporator Fan Contactor) or that 24 vac is present at
			the IFO (Indoor Evaporator Fan On) terminal. Check whether 24 vac is
			present at PL 6-1 (red wire) and/or PL6-3 (black wire). If 24 vac is
			not present, check wiring (see unit label diagram).
			Check proper thermostat connection to G on the connection board.
		No Power to EconoMi$er	Check to ensure that 24 vac is present across Terminals 24 VAC and
		Controller	24 V COM on the EconoMi$er control. If 24 vac is not present, check wiring
			(see unit label diagram). If 24 vac is present, STATUS light should be on
			constantly.
		No Power to G Terminal	If IFM is on, check to ensure 24 vac is present on G Terminal of the
			EconoMi$er controller. If 24 vac is not present, check wiring (see unit
			label diagram).
		Controller Fault	If STATUS light is flashing one flash, the EconoMi$er controller is
			experiencing a fault condition. Cycle power to the controller. If condition
			continues, replace the EconoMi$er controller.
		Thermostat Fault	If STATUS light is flashing two flashes, the EconoMi$er controller senses
			the thermostat is wired incorrectly. Check wiring between the thermostat
			and the connection board in the electrical panel. The fault condition is
			caused by Y2 being energized before Y1.
		Actuator Fault	Check the wiring between the EconoMi$er controller and the actuator.
			Hold CONFIG button between 3 and 10 seconds to verify the
			actuator’s operation. (This process takes 3 minutes to complete.)
EconoMi$er		Minimum Position Set	Verify that the MIN POS (%) is set greater than zero. Adjust MIN POS (%)
Operation Limited to		Incorrectly	to 100% to verify operation, and then set to correct setting.
Minimum Position		EconoMi$er Changeover	Set at correct value. See Table 3.
		Set Point Set Too High or
		Too Low
		Supply Air Temperature	If STATUS light is flashing 4 flashes, Supply Air Temperature Sensor is
		Sensor Faulty	faulty. Check wiring or replace sensor.
		Outdoor Air Temperature	If STATUS light is flashing 5 flashes, Outdoor Air Temperature Sensor is
		Sensor Faulty	faulty. Check wiring or replace sensor.
Damper Position		Supply Air Low Limit	The supply-air temperature is less than 45 F, causing the minimum
Less than Minimum		Strategy Controlling	position to be decreased. Refer to the Start-Up instructions. Verify correct
Position Set Point			setting of MIN POS (%). If correct, EconoMi$er is operating correctly.
Damper Does Not		CO2 Ventilation Strategy	If a CO2 sensor is being used, and the damper position is greater than
Return to Minimum		Controlling	minimum position, the ventilation control strategy is controlling. Refer to
Position			the Start-Up instructions. EconoMi$er is operating correctly.
Damper Does Not		Damper Travel is	Check to ensure the damper is not blocked.
Close on Power Loss		Restricted
	LEGEND
IFM	— Indoor Fan Motor
PL	— Plug

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Carrier 48HJD005-007 specifications EconoMi$er Flash Code Identification, EconoMi$er Troubleshooting, Critical

Contents

SAFETY CONSIDERATIONS CONTENTSINSTALLATION Step 1 - Provide Unit Support1′-4″ Fig. 1 - Roof Curb DetailsFig. 3 - Condensate Drain Pan Fig. 2 - Unit Leveling TolerancesStep 7 - Make Electrical Connections Table 1 - Physical Data Table 1 - Physical Data cont 3/4″ Fig. 5 - Base Unit Dimensions - 48HJ004-0071/2″ Fig. 7 - Gas Piping Guide With Accessory Step 8 - Adjust Factory-Installed OptionsThru-the-Curb Service Connections Fig. 6 - Flue Hood DetailsFig. 9 - Low-Voltage Connections With or Without Economizer Fig. 8 - Power Wiring ConnectionsFig. 10 - Field Control Wiring Raceway the percent of voltage imbalance Never operate a motor where a phase imbalance in supply voltage is greater than 2%. Use the following formula to determine Table 2C - 48HJ High-Static Motor Units Without Electrical Convenience Outlet 208/230-V Unit Shown Fig. 11 - Accessory Field-Installed HumidistatFig. 15 - Durablade Economizer Installed in Unit Fig. 13 - Typical Access Panel LocationsFig. 16 - Horizontal Durablade Economizer Installation Fig. 14 - Outdoor-Air Hood DetailsFig. 19A - Durablade Economizer Damper Minimum Position Setting Wiring HarnessFig. 19B - Durablade Economizer Minimum Position Damper Setting Fig. 20 - Outdoor-Air Thermostat Enthalpy Control InstallationFig. 24 - Typical Access Panel Locations Relief Damper CharacteristicsFig. 25 - Exhaust Air Hood Assembly Fig. 22 - Durablade Economizer BarometricFig. 26 - Outdoor-Air Hood Assembly Fig. 28 - Rear EconoMi$er Flange InstallationFig. 27 - Completed Hood Assembly Fig. 29 - EconoMi$er InstalledFig. 33 - Typical Access Panel Locations Fig. 31 - EconoMi$er Sensor WiringFig. 32 - Wiring Diagram for Power Exhaust System POWER EXHAUST SYSTEM HIGH VOLTAGETable 4 - Default Potentiometer Settings Fig. 34 - Supply-Air Sensor PlacementFig. 35 - EconoMi$er Control Adjustment Potentiometers Factory SettingsFig. 37 - Belt-Drive Motor Mounting Step 9 - Adjust Evaporator-Fan Speed - AdFig. 38 - Evaporator-Fan Pulley Adjustment Table 7 - Evaporator-Fan Motor Data - High-Static Motors Table 5A - 48HJ Fan Rpm at Motor Pulley Setting With Standard MotorTable 6 - Evaporator-Fan Motor Data - Standard Motor Bels Table 8 - Motor Nominal HorsepowerTable 9 - Outdoor Sound Power Total Unit Table 12 - 48HJ005 Fan Performance - Vertical Discharge Units With Standard Motor 3-Phase Units Single-Phase UnitsTable 16 - 48HJ007 Fan Performance - Vertical Discharge Units With Standard Motor Table 18 - 48HJ004 Fan Performance - Horizontal Discharge Units With Standard Motor Table 20 - 48HJ005 Fan Performance - Horizontal Discharge Units With Standard Motor 3-Phase Units Table 26 - Economizer Static Pressure Drop in. wg FIOP - Factory-Installed OptionTable 27 - FIOP MoistureMiser Dehumidification Package Static Pressure Drop in. wgSTART-UP PRE-START-UPTable 28 - Altitude Compensation HeatingOperating Sequence When the supply-air temperature falls between 57 F and Fig. 39 - MoistureMiser Option Operation Lubrication SERVICEFig. 40 - Cleaning Condenser Coil Fig. 41 - Propping Up Top Panel Fig. 42 - Separating Coil SectionsFig. 45 - Cooling Charging Chart Standard 48HJ005 Fig. 43 - Condenser-Fan AdjustmentFig. 44 - Cooling Charging Chart Standard 48HJ004 Fig. 47 - Cooling Charging Chart Standard 48HJ007 Fig. 46 - Cooling Charging Chart Standard 48HJ006Fig. 48 - Cooling Charging Chart, 48HJ004 with Optional MoistureMiser Dehumidification Package Fig. 52 - Burner Section Details Fig. 53 - Burner Tray Details Table 29 - LED Error Code DescriptionLOW HEAT 48HJE004, 48HJD005-007 - 72,000 BTUH INPUT Fig. 54 - Spark Gap AdjustmentMEDIUM AND HIGH HEAT 48HJE005-007, 48HJF004 - 115,000 BTUH INPUT 48HJF005-007 - 150,000 BTUH INPUTTable 30 - LED Error Code Service Analysis TROUBLESHOOTINGTable 32 - Durablade Economizer Service Analysis Table 31 - Heating Service AnalysisCritical Table 34 - EconoMi$er TroubleshootingTable 33 - EconoMi$er Flash Code Identification Table 35 - MoistureMiser Dehumidification Subcooler Service Analysis Compressor operates continuously Table 36 - Cooling Service Analysis208/230 3-Phase Unit Shown Fig. 55 - Typical Wiring Schematic and Component ArrangementNOTES FOR FIG LEGEND AND NOTES FOR FIGReplaces 48HJ-17SI Page I. PRELIMINARY INFORMATION START-UP CHECKLIST Remove and Store in Job FileII. PRE-START-UP insert checkmark in box as each item is completed III. START-UP