ERROR CODE STATUS
READ CODES FROM LEFT TO RIGHT
SEVEN SEGMENT DISPLAY
Seg#3 Seg#2 Seg#1
INTERNAL FAULTS OR IRQ LOSS
E E E
LOCKOUT DUE TO EXCESSIVE RETRIES RECYCLE E E 0
PRESSURE SWITCH STUCK CLOSED E E 1
PRESSURE SWITCH OPEN E E 2
OPEN HIGH LIMIT SWITCH E E 3
FLAME DETECTED WHEN NO FLAME SHOULD BE PRESENT E E 4
OPEN FUSE E E 5
LOW FLAME SIGNAL E E 6
IGNITOR RELAY FAULT E E L
REVERSED LINE POLARITY OR GROUNDING ERROR E E A
INTERNAL GAS VALVE ERROR E E b
EXTERNAL GAS VALVE ERROR E E C
OPEN ROLLOUT SWITCH E 1 1
IGNITOR OPEN E E n
INDUCER RELAY ERROR E E J
TWIN ERROR E E H
LOW CIRCULATOR CURRENT E b L
ERROR CODE STATUS
READ CODES FROM LEFT TO RIGHT
SEVEN SEGMENT DISPLAY
Seg#3 Seg#2 Seg#1
CIRCULATOR CURRENT UNEXPECTED E b U
A2L COMMUNICATION ALARM E A F
A2L LEAKAGE ALARM E A L
A2L INTERNAL ALARM E A S
A2L RELAY ALARM E A r
0140F20001-B
GR
GND
RD
GR
24
VAC
115
VAC
GND
BK
BR
WH
PK
RD
LIMIT
CONTROL
AUXILIARY
AUTO RESET
PK
40 VA
TRANSFORMER
N
G
C
SENSOR
FLAME
1 ROLL OUT SWITCH
SOME UNITS MAY HAVE
PU
BK
JUNCTION
BOX
WH
YL
LIMIT CONTROL
AUTO RESET PRIMARY
WH
1
L
BK
ID BLOWER
PRESSURE SWITCH
PK
RD
L
N
DOOR OPEN)
(OPEN WHEN
DOOR SWITCH
COMPARTMENT
BLOWER
BLOWER
CIRCULATOR
DISCONNECT
CONNECTOR
2 CIRCUIT
WH
IGNITER
SURFACE
HOT
2
BLOWER
DRAFT
INDUCED
BK
BLOWER COMPARTMENT
BK
ECM MOTOR
HARNESS
BK
BURNER COMPARTMENT
1
2
3
4
5
6
7
8
9
10
11
12
EAC-H
XFMR-H
LINE-H
E20
E2
E1
E15
E8
E5
E4
E3
E7
E6
LEFT
CENTER
RIGHT
SW331313 SW1
R223
SW2
6
R226
YL
RD
YL
YL
BK
BK
WH
WH
WH
GY
BL
GR
PU
PU
NEUT2
NEUT1
CIRC-N
EAC-N
HUM-N
XFMR-N
LINE-N
RD
1
2
BK
BK
BK
WH
WH
WH
WH
5
2
1
4
3
RD
BK
OR
BL
YL
RD
BL
OR
BK
YL
T1
T2
T3
T4
T5
COM
RD
GND
TWIN
24V HUM
E21
E24
W/W1
R
Y/Y1
G C
Y2
GND
RD
YL
A2L
ALARM
SPARE
VT-
OUT
VT-
IN
GND
1
2
5V
GY
NO
C
GAS
VALVE
BR
GY
C
HI
A2L MODE IS ENABLED BY
DEFAULT
REFER TO INSTALLATION MANUAL
FOR FURTHER INSTRUCTIONS.
TO 115 VAC/ 1
/60 HZ
POWER SUPPLY WITH
OVERCURRENT
PROTECTION DEVICE
NOTES:
1. MANUFACTURER'S SPECIFIED REPLACEMENT
PARTS MUST BE USED WHEN SERVICING.
2. IF ANY OF THE ORIGINAL WIRE AS SUPPLIED
WITH THE FURNACE MUST BE REPLACED IT MUST
BE REPLACED WITH WIRING MATERIAL
HAVING A TEMPERATURE RATING OF AT LEAST
105° C. USE COPPER CONDUCTORS ONLY.
3. UNIT MUST BE PERMANENTLY GROUNDED AND
CONFORM TO N.E.C. AND LOCAL CODES.
4. TO RECALL THE LAST 6 FAULTS, MOST RECENT
TO LEAST RECENT, DEPRESS SWITCH FOR MORE
THAN 2 SECONDS WHILE IN STANDBY
(NO THERMOSTAT INPUTS)
5. WHEN THIS FURNACE IS PAIRED WITH NON R-32
REFRIGERANT SYSTEMS, DEFAULT SETTINGS
WILL NEED TO BE CHANGED. REFER TO
INSTALLATION MANUAL FOR FURTHER
INSTRUCTIONS.
WIRE
COLOR:
YL
WH
BL
BK
RD
OR
PK
GY
TN
GR
BR
YELLOW
WHITE
BLUE
BLACK
RED
ORANGE
BROWN
PINK
GRAY
TAN
GREEN
PURPLE
VIOLET
COLOR
DESIGNATION:
PU
VT
SWITCH (PRESSURE)
FIELD SPLICE
FIELD GROUND
EQUIPMENT GROUND
PROTECTION DEVICE
PLUG CONNECTION
SWITCH (TEMPERATURE)
JUNCTION
OVERCURRENT
TERMINAL
IGNITER
HIGH VOLTAGE (115V)
HIGH VOLTAGE FIELD
LOW VOLTAGE (24V)
LOW VOLTAGE FIELD
WARNING: DISCONNECT
POWER BEFORE
SERVICING. WIRING
TO UNIT MUST BE
PROPERLY POLARIZED
AND GROUNDED
A2L SENSOR
CONNECTOR
CIRC-H
E39
BK
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