SERVICING
61
DIAGNOSTIC CODES
(no display)
Internal Control Fault / No Power
On
Standby, Waiting for Inputs
Ed
Heater Kit Dip Switches Not Set Properly
Eb
No Heater Kit Installed - System Calling for Auxiliary Heat
E5
Fuse Open
EF
Auxiliary Switch Open
d0
Data Not On Network
d1
Invalid Data On Network
d4
Invalid Memory Card Data
b0
Blower Motor Not Running
b1
Blower Motor Communication Error
b2
Blower Motor Heat Pump Mismatch
b3
Blower Motor Operating in Power, Temp. or Speed Limit
b4
Blower Motor Current Trip or Lost Rotor
b5
Blower Motor Rotor Locked
b6
Over/Under Voltage Trip or Over Temperature Trip
b7
Incomplete Parameter Sent to Motor
b9
Low Indoor Airflow
FC
Fan Cool
FH
Fan Heat
F
Fan Only
H1
Electric Heat Low
H2
Electric Heat High
dF
Defrost
7 SEGMENT LED
(characters will
alternate)
DESCRIPTION OF CONDITION
Green CFM LED - Each Flash Represents 100CFM
(Use for airflow approximation only) - Example: 8 Flashes = 800CFM
0140A00079-A