GE CleanSpeak GTD81ESPJMC Technical Service Manual page 47

Gas Valve
If no heat, with the dryer running and a heat cycle selected, check for 120 VAC to the gas burner assembly
from the J2 red wire to the brown wire on the J8. Approximate amperage draw of 3.5 amps can be checked
from the red wire on the J2 connector.
Also check between J4 and J2. If the relay is closed, no voltage should be present when calling for heat. If
voltage is present, replace the board.
coils, motor switch, harnesses, and connectors.
POWER BOARD
K4 K1
K2
J8
1
1
J7 J6
NOTE: This wire marked as (P) pink might be (W) white in some units.
K3
J5 J4 J2
HI-LIMIT
V-18 B-18
OUTLET
CONTROL
BACKUP
O-18 Y-18
G 1
2
6 4 5
S-20
DRUM MOTOR RUNNING
C-18
1 6 3
(2.98-3.30 )
C-18
2
5
(3.19-3.53 )
V-18
R-18
L1 N
CORD
SET
REAR
PANEL
IGNITOR
FLAME DETECT
(40-400 )@75°F
3
MAIN
BOOSTER
(1300 )
(580 )
SAFETY
(1400 )
TAB SEQUENCE
DRUM MOTOR
CONNECTOR
GY-16
CHASSIS
G
BASE
4
P-18 C-18
IDLER
SWITCH
– 47 –
L1 N
NC
(NOT USED)
COM
W-18
NO
C-18
DOOR SWITCH
SHOWN
DOOR CLOSED
(Continued Next Page)