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Alert Notification
Fault LED
COMM LED
Solid ON ‡
N/A
Solid ON ‡
N/A
1 Flash *
N/A
2 Flash
N/A
3 Flash **
Fast Flash
3 Flash
N/A
3 Flash **
Fast Flash
3 Flash
N/A
4 Flash
N/A
4 Flash
N/A
5 Flash *
N/A
5 Flash *
N/A
6 Flash *
N/A
6 Flash *
N/A
7 Flash
N/A
8 Flash
N/A
9 Flash
N/A
†
If Air Handler processor is reset or fuse is open, COMM Alert cannot be reported; if the processor is reset
the User Interface will not be updated
*
Alert flash code will not be implemented for initial release
Notes:
**
COMM communication errors may also be flashed on Fault LED
‡
LitePort™ transmissions will be allowed during ON flash codes
+
Fuse alert notification level would show on Comfort Control, but when fuse is open the COMM bus has no power
¹
Comfort Control will switch system to "OFF" until this fault condition clears
6
AIR HANDLER FLASH CODES
Comfort
User Interface
Control
Display
Display
CNTRL FAULT †
ERR 18
CHECK FUSE †
N/A +
EXT SW OPEN *
ERR 106 *
PM MEM ERR
ERR 114
PM MISSING
ID MTR ERR
PM UNIT ERR
N/A
CAP MISMATCH
PM DATA ERR
NO SYS CLK
SYS COMM ERR
ERR 91
BLW COMM ERR
SYS COMM CRC
N/A
BLW COMM CRC
HT+LK ON ERR
ERR 105
INTLK ON ERR
NTLK OFF ERR
HT ON ERR
ERR 104
HT OFF ERR
DAS RNG ERR *
DAS UL ERR *
ERR 118 *
DAS LL ERR *
DAS SHORT *
N/A
DAS OPEN *
RAS RNG ERR *
N/A
RAS SHORT *
N/A
RAS OPEN *
Y1 ON ERR
ERR 101
Y1 OFF ERR
TWIN ERROR
N/A
DEMAND ERR *
N/A
HT CFG ERR
Alert
Alert Group
Code
18
Control Failure
92
Fuse Failure
External
106
External Shutdown Input Open Error
Shutdown Fault
PM Bad or
114
Missing Fault
Communication
91
Inactive Fault
Communication
90
Serial Motor Communication Busy
Busy Fault
Both Interlock Relay & Heater Relay
Heater Interlock
105
Relay Fault
Heater Relay
104
Fault
Discharge Air Temperature Range
Discharge Air
118
Temperature
Fault
Discharge Air
52
Sensor Fault
Return Air
117
Temperature
Fault
Return Air
110
Sensor Fault
101
Y1 Relay Fault
19
Twinning Fault
Demand
123
Configuration
Alert Description
Internal Control Error
24V Fuse Open Error
PM Data Corrupt Error
PM Missing Error
Motor Mismatch Error
PM Unit Data Error
Compressor Capacity Mismatch
Error
PM Data Section Error
COMM Bit Master Clock Error
COMM Heat/Cool Demand Error
Serial Motor Communication
Inactive Error ¹
COMM System Busy Error
Error
Stuck Closed Error
Interlock Relay Stuck Closed
Error
Interlock Relay Stuck Open Error
Heater Relay Stuck Closed Error
Heater Relay Stuck Open Error
Error
Discharge Air Temperature Upper
Limit Error
Discharge Air Temperature Lower
Limit Error
Discharge Air Sensor Short Error
Discharge Air Sensor Open Error
Return Air Temperature Range
Error
Return Air Sensor Short Error
Return Air Sensor Open Error
Y1 Relay Stuck Closed Error
Y1 Relay Stuck Open Error
Air Handler Twinning Error
Heat/Cool Demand Conflict Error
Electric Heat Configuration Error
TEE3C49A-SF-1B
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