Carrier 48/50AJ specifications Table D Alarm Codes, Replace the cooling fan Restore power, 167

		APPENDIX C — VFD INFORMATION (cont)
		Table D — Alarm Codes
ALARM	ALARM NAME	DESCRIPTION AND RECOMMENDED CORRECTIVE ACTION
CODE	IN PANEL
2001	—	Reserved
2002	—	Reserved
2003	—	Reserved
2004	DIR LOCK	The change in direction being attempted is not allowed. Do not attempt to change the direction of motor rota-
		tion, or Change parameter 1003 DIRECTION to allow direction change (if reverse operation is safe).
2005		Field bus communication has timed out. Check fault setup (3018 COMM FAULT FUNC and 3019 COMM
	I/O COMM	FAULT TIME). Check communication settings (Group 51 or 53 as appropriate). Check for poor connections
		and/or noise on line.
2006	AI1 LOSS	Analog input 1 is lost, or value is less than the minimum setting. Check input source and connections. Check
		the parameter that sets the minimum (3021) and the parameter that sets the Alarm/Fault operation (3001).
2007	AI2 LOSS	Analog input 2 is lost, or value is less than the minimum setting. Check input source and connections. Check
		parameter that sets the minimum (3022) and the parameter that sets the Alarm/Fault operation (3001).
		Panel communication is lost and either the VFD is in local control mode (the control panel displays HAND), or
2008		the VFD is in remote control mode (AUTO) and is parameterized to accept start/stop, direction or reference
	PANEL LOSS	from the control panel. To correct, check the communication lines and connections, Parameter 3002 PANEL
		LOSS, and parameters in groups 10 COMMAND INPUTS and 11 REFERENCE SELECT (if drive operation
		is REM).
2009	—	Reserved
2010		Motor is hot, based on either the VFD estimate or on temperature feedback. This alarm warns that a Motor
	MOT OVERTEMP	Overload fault trip may be near. Check for overloaded motor. Adjust the parameters used for the estimate
		(3005 through 3009). Check the temperature sensors and Group 35 parameters.
2011		Motor load is lower than expected. This alarm warns that a Motor Underload fault trip may be near. Check
	UNDERLOAD	that the motor and drive ratings match (motor is NOT undersized for the drive). Check the settings on param-
		eters 3013 to 3015.
2012	MOTOR STALL	Motor is operating in the stall region. This alarm warns that a Motor Stall fault trip may be near.
2013*	AUTORESET	This alarm warns that the drive is about to perform an automatic fault reset, which may start the motor. To
		control automatic reset, use parameter group 31 (AUTOMATIC RESET).
2014*	AUTOCHANGE	This alarm warns that the PFA autochange function is active. To control PFA, use parameter group 81 (PFA)
		and the Pump Alternation macro.
2015	PFA INTERLOCK	This alarm warns that the PFA interlocks are active, which means that the drive cannot start any motor (when
		Autochange is used), or a speed regulated motor (when Autochange is not used).
2016	—	Reserved
2017*	OFF BUTTON	This alarm indicates that the OFF button has been pressed.
2018*		This alarm warns that the PID sleep function is active, which means that the motor could
	PID SLEEP	accelerate when the PID sleep function ends. To control PID sleep, use parameters
		4022 through 4026 or 4122 through 4126.
2019	ID RUN	The VFD is performing an ID run.
2020	OVERRIDE	Override mode is activated.
2021	START ENABLE 1	This alarm warns that the Start Enable 1 signal is missing. To control Start Enable 1 function, use parameter
	MISSING	1608. To correct, check the digital input configuration and the communication settings.
2022	START ENABLE 2	This alarm warns that the Start Enable 2 signal is missing. To control Start Enable 2 function, use parameter
	MISSING	1609. To correct, check the digital input configuration and the communication settings.
2023	EMERGENCY STOP	Emergency stop is activated.

*This alarm is not indicated by a relay output, even when the relay output is configured to indicate alarm conditions, parameter 1401 RELAY OUT- PUT = 5 (ALARM) or 16 (FLT/ALARM).

Check the heat sink as follows (when necessary):

1.Remove power from drive.

2.Remove the cooling fan.

3.Blow clean compressed air (not humid) from bottom to top and simultaneously use a vacuum cleaner at the air outlet to trap the dust. If there a risk of the dust entering adjoining equipment, perform the cleaning in another room.

4.Replace the cooling fan.

5.Restore power.

Table E — Maintenance Intervals

MAINTENANCE	INTERVAL
Heat Sink Temperature	Every 6 to 12 months (depending
Check and Cleaning	on the dustiness of the environment)
Main Cooling Fan	Every five years
Replacement
Internal Enclosure Cooling	Every three years
Fan Replacement
Capacitor Change	Every ten years
(Frame Size R5 and R6)
HVAC Control Panel	Every ten years
Battery Change

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