26
0140A00079-A
7 SEGMENT LED
(characters will
alternate)
DESCRIPTION OF CONDITION
(no dis play) INTERNAL CONTROL FAULT / NO POWER
On STANDBY, WAITING FOR INPUTS
Ed HEATER KIT DIP SWITCHES NOT SET PROPERLY
Eb NO HTR KIT INSTALLED - SYSTEM CALLING FOR AUXILIARY HEAT
E5 FUSE OPEN
EF AUXILIARY SWITCH OPEN
d0 DATA NOT ON NE TW ORK
d1 INVALID DATA ON NETWORK
d4 INVALID MEMORY CA RD DATA
b0 BLOWER MOTOR NOT RUNNING
b1 BLOW ER MOTOR COMMUNICATION ERROR
b2 BLOWER MOTOR HP 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 P ARAMETE R S E NT TO MOTOR
b9 LOW INDOOR AIRFLOW
C1 LOW STAGE COOL - LEGACY MODE ONLY
C2 HIGH STAGE COOL - LEGACY MODE ONLY
P1 LOW STAGE HEAT PUMP HEAT - LEGACY MODE ONLY
P2 HIGH STAGE HEAT PUMP HEAT - LEGACY MODE ONLY
h1 EMERGENCY HEAT LOW - COMMUNICATING MODE ONLY
h2 EMERGENCY HEAT HIGH - COMMUNICATING MODE ONLY
FC FAN COOL - COMMUNICA TING MODE ONLY
FH FAN HEAT - COMMUNICATING MODE ONLY
FFAN ONLY
H1 ELECTRIC HEAT LOW
H2 ELECTRIC HEAT HIGH
dF
DEFROST - COMMUNICATING MODE ONLY
(note: defrost is displayed as H1 in a legacy setup)
GREEN CFM LED - EACH FLASH REPRESENTS 100CFM (USE FOR AIRFLOW
APPROXIMATION ONLY) - EXAMPLE: 8 FLASHES = 800CFM
26 Diagnostic Codes
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