Goodman Mfg GMH95 Furnace User Manual


  Open as PDF
of 15
 
14
WIRING DIAGRAMS
Wiring is subject to change, always refer to the wiring diagram on the unit for the most up-to-date wiring.
GMH95[0453,0704,0905]*XAB
GMH95[0703,0904,1155]*XAC
HIGH VOLTAGE!
DISCONNECT ALL POWER BEFORE SERVICING OR INSTALLING THIS
UNIT. MULTIPLE POWER SOURCES MAY BE PRESENT. FAILURE TO
DO SO MAY CAUSE PROPERTY DAMAGE, PERSONAL INJURY OR DEATH.
R
Y
L
Y
E
L
L
O
W
O
R
O
R
A
N
G
E
P
U
P
U
R
P
L
E
G
N
G
R
E
E
N
B
K
B
L
A
C
K
B
R
B
R
O
W
N
W
H
W
H
I
T
E
B
L
B
L
U
E
G
Y
G
R
A
Y
R
D
R
E
D
C
O
L
O
R
C
O
D
E
S
:
L
O
W
V
O
L
T
A
G
E
(
2
4
V
)
L
O
W
V
O
L
T
A
G
E
F
I
E
L
D
H
I
V
O
L
T
A
G
E
(
1
1
5
V
)
H
I
V
O
L
T
A
G
E
F
I
E
L
D
N
O
T
E
S
:
1
.
S
E
T
H
E
A
T
A
N
T
I
C
I
P
A
T
O
R
O
N
R
O
O
M
T
H
E
R
M
O
S
T
A
T
A
T
0
.
7
A
M
P
S
.
2
.
M
A
N
U
F
A
C
T
U
R
E
R
'
S
S
P
E
C
I
F
I
E
D
R
E
P
L
A
C
E
M
E
N
T
P
A
R
T
S
M
U
S
T
B
E
U
S
E
D
W
H
E
N
S
E
R
V
I
C
I
N
G
.
0
1
4
0
F
0
0
5
9
2
R
E
V
.
A
O
R
(
M
E
D
L
O
W
)
B
L
(
M
E
D
)
R
D
(
L
O
W
)
G
A
S
V
A
L
V
E
C
P
M
C
G
W
I
N
T
E
R
N
A
L
T
O
I
N
T
E
G
R
A
T
E
D
C
O
N
T
R
O
L
J
U
N
C
T
I
O
N
E
Q
U
I
P
M
E
N
T
G
N
D
F
I
E
L
D
G
N
D
D
I
A
G
N
O
S
T
I
C
L
E
D
2
C
I
R
C
U
I
T
C
O
N
N
E
C
T
O
R
H
O
T
S
U
R
F
A
C
E
I
G
N
I
T
E
R
O
V
E
R
C
U
R
R
E
N
T
P
R
O
T
.
D
E
V
I
C
E
I
G
N
I
T
E
R
T
H
(
3
)
I
N
T
E
G
R
A
T
E
D
C
O
N
T
R
O
L
M
O
D
U
L
E
J
U
N
C
T
I
O
N
B
O
X
L
I
N
E
-
H
X
F
M
R
-
H
INTEGRATED CONTROL MODULE
INTEGRATED CONTROL MODULE
G
N
D
D
I
S
C
O
N
N
E
C
T
L
N
O
V
E
R
C
U
R
R
E
N
T
P
R
O
T
E
C
T
I
O
N
D
E
V
I
C
E
B
R
G
Y
R
D
B
L
B
K
4
.
I
F
H
E
A
T
I
N
G
A
N
D
C
O
O
L
I
N
G
B
L
O
W
E
R
S
P
E
E
D
S
A
R
E
N
O
T
T
H
E
S
A
M
E
,
D
I
S
C
A
R
D
J
U
M
P
E
R
B
E
F
O
R
E
C
O
N
N
E
C
T
I
N
G
B
L
O
W
E
R
L
E
A
D
S
.
U
N
U
S
E
D
B
L
O
W
E
R
L
E
A
D
S
M
U
S
T
B
E
P
L
A
C
E
D
O
N
"
P
A
R
K
"
T
E
R
M
I
N
A
L
S
O
F
I
N
T
E
G
R
A
T
E
D
C
O
N
T
R
O
L
O
R
T
A
P
E
D
.
3
.
I
F
A
N
Y
O
F
T
H
E
O
R
I
G
I
N
A
L
W
I
R
E
A
S
S
U
P
P
L
I
E
D
W
I
T
H
T
H
E
F
U
R
N
A
C
E
M
U
S
T
B
E
R
E
P
L
A
C
E
D
,
I
T
M
U
S
T
B
E
R
E
P
L
A
C
E
D
W
I
T
H
W
I
R
I
N
G
M
A
T
E
R
I
A
L
H
A
V
I
N
G
A
T
E
M
P
E
R
A
T
U
R
E
R
A
T
I
N
G
O
F
A
T
L
E
A
S
T
1
0
5
T
E
R
M
I
N
A
L
S
W
I
T
C
H
(
P
R
E
S
S
.
)
5
.
U
N
I
T
M
U
S
T
B
E
P
E
R
M
A
N
E
N
T
L
Y
G
R
O
U
N
D
E
D
A
N
D
C
O
N
F
O
R
M
T
O
N
.
E
.
C
.
A
N
D
L
O
C
A
L
C
O
D
E
S
.
P
K
P
I
N
K
1
1
5
V
A
C
H
O
T
A
N
D
P
A
R
K
T
E
R
M
I
N
A
L
S
L
I
N
E
-
H
F
L
A
M
E
S
E
N
S
O
R
F
R
O
N
T
C
O
V
E
R
P
R
E
S
S
U
R
E
S
W
I
T
C
H
N
O
C
G
Y
B
K
P
L
U
G
C
O
N
N
E
C
T
I
O
N
F
I
E
L
D
S
P
L
I
C
E
S
W
I
T
C
H
(
T
E
M
P
.
)
O
R
2
4
V
T
H
E
R
M
O
S
T
A
T
C
O
N
N
E
C
T
I
O
N
S
G
R
G
N
D
1
1
5
V
A
C
2
4
V
A
C
B
L
O
W
E
R
C
O
M
P
A
R
T
M
E
N
T
D
O
O
R
S
W
I
T
C
H
(
O
P
E
N
W
H
E
N
D
O
O
R
O
P
E
N
)
D
O
O
R
S
W
I
T
C
H
B
K
G
N
D
L
N
W
H
J
U
N
C
T
I
O
N
B
O
X
1
O
R
I
D
B
L
O
W
E
R
P
R
E
S
S
U
R
E
S
W
I
T
C
H
H
E
A
T
-
H
G
N
D
W
H
R
D
W
H
G
N
D
B
U
R
N
E
R
C
O
M
P
A
R
T
M
E
N
T
B
L
O
W
E
R
C
O
M
P
A
R
T
M
E
N
T
N
O
T
E
4
S
E
E
N
O
C
O
O
L
-
H
B
K
(
H
I
)
B
R
B
R
C
A
P
A
C
I
T
O
R
Y
L
W
H
Y
L
B
L
P
U
R
D
O
R
P
K
B
K
W
H
W
H
B
L
O
W
E
R
I
N
D
U
C
E
D
D
R
A
F
T
M
A
N
U
A
L
R
E
S
E
T
A
U
X
I
L
I
A
R
Y
L
I
M
I
T
S
(
1
)
I
N
U
P
F
L
O
W
B
L
O
W
E
R
D
E
C
K
(
2
)
I
N
C
'
F
L
O
W
B
L
O
W
E
R
H
O
U
S
I
N
G
C
F
S
H
I
H
E
A
T
-
H
L
O
H
E
A
T
-
H
I
G
N
I
T
E
R
H
O
T
S
U
R
F
A
C
E
I
N
D
I
G
N
E
A
C
-
H
A
I
R
C
L
E
A
N
E
R
E
L
E
C
T
R
O
N
I
C
B
L
W
R
C
I
R
C
U
L
A
T
O
R
B
L
W
R
I
D
F
L
A
M
E
S
E
N
S
O
R
1
1
5
V
A
C
T
R
A
N
S
F
O
R
M
E
R
4
0
V
A
2
4
V
A
C
G
N
D
R
O
1
(
5
)
R
O
2
(
1
1
)
H
L
O
(
1
)
H
L
I
(
7
)
M
V
C
(
9
)
G
N
D
(
8
)
T
R
(
6
)
OR
WH
WH
BL
YL
OR
RD
GR
BR
P
K
PK
GY
W
H
115 VAC NEUTRAL
BK
BK
G
Y
24V THERMOSTAT CONNECTIONS
M
I
C
R
O
T
O
C
G
Y
W
R
2
W
H
O
R
B
L
Y
L
O
R
O
R
G
Y
P
K
R
D
O
R
G
Y
W
H
XFMR-H
TERMINALS
G
Y
O
R
G
R
B
R
1
2
3
1
2
1
1
1
0
9
8
7
6
5
4
°
C
.
U
S
E
C
O
P
P
E
R
C
O
N
D
U
C
T
O
R
S
O
N
L
Y
.
2
4
V
A
C
H
U
M
I
D
I
F
I
E
R
2
4
V
A
C
H
U
M
I
D
I
F
I
E
R
H
U
M
I
D
I
F
I
E
R
P
S
O
(
4
)
M
V
L
(
2
)
P
S
(
1
0
)
C
N
O
C
N
O
F
R
O
N
T
C
O
V
E
R
P
R
E
S
S
U
R
E
S
W
I
T
C
H
I
D
B
L
O
W
E
R
P
R
E
S
S
U
R
E
S
W
I
T
C
H
0
C
7
6
5
4
3
2
1
O
F
F
=
C
O
N
T
R
O
L
F
A
I
L
U
R
E
S
T
E
A
D
Y
O
N
=
N
O
R
M
A
L
O
P
E
R
A
T
I
O
N
1
F
L
A
S
H
=
2
F
L
A
S
H
E
S
=
P
R
E
S
S
U
R
E
S
W
I
T
C
H
S
T
U
C
K
C
L
O
S
E
D
3
F
L
A
S
H
E
S
=
P
R
E
S
S
U
R
E
S
W
I
T
C
H
S
T
U
C
K
O
P
E
N
4
F
L
A
S
H
E
S
=
O
P
E
N
H
I
G
H
L
I
M
I
T
5
F
L
A
S
H
E
S
=
F
L
A
M
E
S
E
N
S
E
W
I
T
H
O
U
T
G
A
S
V
A
L
V
E
7
F
L
A
S
H
E
S
=
L
O
W
F
L
A
M
E
S
I
G
N
A
L
6
F
L
A
S
H
E
S
=
C
O
N
T
I
N
U
O
U
S
/
R
A
P
I
D
F
L
A
S
H
E
S
=
R
E
V
E
R
S
E
D
1
1
5
V
A
C
P
O
L
A
R
I
T
Y
C
O
N
T
R
O
L
M
O
D
U
L
E
I
N
T
E
G
R
A
T
E
D
F
U
S
E
ON
OFF
2ND
STAGE
DELAY
MODE
HEAT
OFF
DELAY
FS
1
2
3
H
I
O
R
OR
P
M
G
A
S
V
A
L
V
E
C
H
I
M
V
H
(
1
2
)
F
A
C
T
O
R
Y
S
E
T
T
I
N
G
S
S
H
O
W
N
*
*
*
*
SEE
NOTE 6
COOL-H
T
O
1
1
5
V
A
C
/
1
Ø
/
6
0
H
Z
P
O
W
E
R
S
U
P
P
L
Y
W
I
T
H
P
U
Y
6. TO RECALL THE LAST 5 FAULTS, MOST RECENT TO LEAST RECENT, DEPRESS SWITCH FOR MORE THAN 2 SECONDS
WHILE IN
STANDBY
(NO THERMOSTAT INPUTS)
B
K
LINE NEUTRALS
8
8
F
L
A
S
H
E
S
=
C
H
E
C
K
I
G
N
I
T
E
R
O
R
I
M
P
R
O
P
E
R
G
R
O
U
N
D
I
N
G
 previous