Manualshelf

Service Manual

ManualsBrandsGOODMAN ManualsForced Air Furnaces96% AFUE 120,000 BTU Multi Positional 2-Stage Variable Speed Natural Gas Furnace with 24.5 in. Cabinet
51525354555657585960
TROUBLESHOOTING
52
C2
O
n
HI
b
0
d
4
C
1
b2
E
4
H
I
INTERNAL CONTROL FAULT/NO
POWER
NORMAL OPERATION
LOCKOUT DUE TO EXCESSIVERETRIES
LOW STAGE PRESSURE SWITCH STUCK CLOSED AT START OF HEATING CYCLE
LOW STAGE PRESSURE SWITCH STUCK OPEN
OPEN HIGH LIMIT
SWITCH
FLAME DETECTED WHEN NO FLAME SHOULD BE PRESENT
OPEN FUSE
LOW FLAME SIGNAL
IGNITER FAULT OR IMPROPER GROUNDING
HIGH STAGE PRESSURE SWITCH STUCK CLOSED AT START OF HEATING CYCLE
HIGH STAGE PRESSURE SWITCH STUCK
OPEN
REVERSED 115 VAC POLARITY
DATA NOT YET ON NETWORK
INVALID MEMORY CARD DATA
BLOWER MOTOR NOT RUNNING
BLOWER COMMUNICATION ERROR
BLOWER HP MIS-MATCH
BLOWER MOTOR OPERATING IN POWER, TEMPERATURE, OR SPEED LIMIT
BLOWER MOTOR CURRENT TRIP OR LOST
ROTOR
BLOWER MOTOR LOCKED ROTOR
OVER/UNDER VOLTAGE TRIP OR OVER TEMPERATURE TRIP
INCOMPLETE PARAMETERS SENT TO
MOTOR
LOW INDOOR AIRFLOW
LOW STAGE COOL
HIGH STAGE COOL
LOW STAGE GAS
HEAT
HIGH STAGE GAS HEAT
CONTINUOUS FAN
CFM/100; ALTERNATES WITH
F
L
0
b1
b6
12
b9
LO
b
7
E A
E8
F
E3
C2
b5
E6
E2
E9
E
1
b
3
b
4
d
0
E5
E7
E0
0140F01169 REV A
LOW STAGE HEAT PUMP HEAT
P2
C
1
HIGH STAGE HEAT PUMP
HEAT
, , , ,
,
P1 P2
AUXILIARY SWITCH OPEN
EF
P1