Alarm Codes; Table 32 - Alarm Codes - York EX Series Installation, Operation & Maintenance Instructions Manual

SECTION 6 – OPERATION

Alarm Codes

The following table contains the alarm codes for the
controller, the name of the failure that triggered the
alarm, the cause of the alarm, and the action needed to
correct the problem. The codes are the same for both
mechanisms covered in this document

TABLE 32 - ALARM CODES

ALARM CODE FAILURE NAME
PV input failure (over-
AL01
range)
PV input failure (under-
AL02
range)
Cold Junction (CJ)
failure
AL03
PV input failure RTD 1
RSP input failure (over-
AL05 range) (Displayed in
RSP mode) 2
RSP input failure
(under-range)
AL06
(Displayed in RSP
mode)
Motor Feed Back (MFB)
AL07
input failure
AL10 Motor adjustment failure
CT input failure (Over-
AL11 range) (CT input 1,2, or
both) 2
Analog to Digital (A/D)
AL70
conversion failure
AL95 Parameter failure
AL96 Adjustment data failure
Parameter failure (RAM
AL97
area)
Adjustment data failure
AL98
(RAM area)
AL99 ROM failure
1. RTD: Resistance Temperature Detector
2. CT: Current Transformer
120
CAUSE
Sensor burnout
Incorrect wiring
Incorrect PV input type
setting
Terminal temperature is
faulty (thermocouple)
Sensor burnout
Incorrect wiring
Sensor burnout
Incorrect wiring
Incorrect RSP input type
setting
Burnout
Incorrect wiring
Burnout
Incorrect wiring
Power for motor is shut
down
A current exceeding the
upper limit of the display
range was measured.
The number of CT turns or
the number of CT power
wire loops is incorrectly
set. Or, the wiring is
incorrect.
A/D converter is faulty
Power is shut down while
the data is being set
Data is corrupted by noise
Data is corrupted by noise
ROM (memory) is faulty
FORM 155.32-ICOM1.EN.GB
ISSUE DATE: 10/13/2017
CORRECTIVE ACTION
Check the wiring
Set the PV input type again
Check the ambient temperature
Check the wiring
Check the wiring
Set the RSP input type again.
Check the wiring
Check the MFB input valve
Check the wiring
Adjust the motor after checking power for the
motor.
Use a CT with the correct number of turns for
the display range
Reset the number of CT turns
Reset the number of CT power wire loops
Check the wiring
Replace the unit
Restart the unit
Set the data again (set data for AL95/97 and
adjustment data for AL96/98)
Replace the unit
Reset the unit
Replace the unit
JOHNSON CONTROLS