Table 40 - Isn Operational And Fault Codes - York YCAL0019 Installation Operation & Maintenance

SECTION 10 – MAINTENANCE

TABLE 40 - ISN OPERATIONAL AND FAULT CODES

P56/58
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
* The operational and fault codes sent to ISN pages 56 through 59 are defined in Table 39. Note that this table of fault and operational codes is
for all DX products.
192
Operational Code
No Abnormal Condition
Unit Switch Off
System Switch Off
Lock-Out
Unit Fault
System Fault
Remove Shutdown
Daily Schedule Shutdown
No Run Permissive
No Cool Load
Anti-Conicidence Timer Active
Anti-Recycle Timer Active
Manual Override
Suction Limiting
Discharge Limiting
Current Limiting
Load Limiting
Compressor(s) Running
Heat Pump Load Limiting
P57/59
0
1
2 Low Ambient Temperature
3 High Ambient Temperature
4 Low Leaving Chilled Liquid Temp
5 High Discharge Pressure
6 High Differential Oil Pressure
7 Low Suction Pressure
8
9
10 Low Battery Warning
11 High Oil Temperature
12 High Discharge Temperature
13 Improper Phase Rotation
14 Low Motor Current Unbalanced
15 Motor Current / MP / HPCO
16 Low Differential Oil Pressure
17
18
19 Low Evaporator Temperature
20 Incorrect Refrigerant Programmed
21 Required Power Failure, Manual Reset
22
23
24
25
26
27
28 Pump Fail Make Flow
FORM 150.67-NM2
ISSUE DATE: 01/31/2019
Fault Code
No Fault
VAC Under Voltage
High Motor Current
LLSV Not On
Ground Fault
MP / HPCO
Unit Motor Current
Low Superheat
Sensor Fail
Discharge Inhibit
MP/HPCO Inhibit
Pump Trip
JOHNSON CONTROLS