Jenn-Air JGC8430BDB/Q/S/W, Service Manual

Page: 14 / 43

Component Testing Procedures
!
WARNING
To avoid risk of electrical shock, personal injury or death; disconnect power and gas to cooktop before servicing,
unless testing requires power.
16023565
©2004 Maytag Services
14
Illustration Component Test Procedure Results
Venturi, front
(short)
JGD8348CDP
Nominal air shutter setting............
Tolerance...................................... .375 3/8"
.030 1/32"
Venturi, rear
(long)
JGD8348CDP
Nominal air shutter setting............
Tolerance...................................... .375 3/8"
.030 1/32"
Tube, front
(short)
JGD8348CDP
Nominal air shutter setting............
Tolerance...................................... .250 1/4"
.031 1/32"
(approx.)
Tube, rear
(long)
JGD8348CDP
Nominal air shutter setting............
Tolerance...................................... .585 19/32" (approx.)
.031 1/32" (approx.)
E-burner grill
assembly
JGD8348CDP
Verify gas is supplied.................... Check for obstructions in burner
ports.
E-burner ignitor
JGD8348CDP
Test for resistance of spark lead ..
Test ignitor to chassis................... Continuity
No continuity from ignitor to
chassis.
Pressure regulator
All
Verify gas pressure (W.C.P.)........
If on LP service, verify proper
gas supply conversion. 5" Natural,
10" LP/propane
270
°
Switch
JGCP430ADP,
JGCP636ADP,
JGCP648ADP
Verify gas is supplied.
Orifice adjusted for
Natural or LP.
Adjust set screw for simmer
control ........................................... To replace burner valve(s),
complete assembly must be
replaced (manifold and valves).
See conversion section.
Valve switch
JGCP430ADP,
JGCP636ADP,
JGCP648ADP
Test for voltage at terminals .........
Disconnect wiring and check for
continuity in LITE position............. 120 VAC
Continuity in LITE position.
Spark ignition
electrode
JGCP430ADP,
JGCP636ADP,
JGCP648ADP
Test for resistance of spark lead
Test ignitor to chassis................. Continuity
No continuity from ignitor to
chassis.
L
A B
A1 B1 N
Spark B module
JGCP636ADP,
JGCP648ADP
Test for voltage at terminals
A and N.........................................
Check polarity and ground............
120 VAC
See wiring diagram
L
A B
A1 B1 N
Spark module
4 + 0
JGCP430ADP
Test for voltage at terminals
A and N.........................................
Check polarity and ground............
120 VAC
See wiring diagram