Jenn-Air JES8750BA Series Service Manual page 15

Testing Procedures
To avoid risk of electrical shock, personal injury, or death, disconnect power to range before servicing, unless
testing requires power.
Illustration
Ribbon element,100 W
Ribbon element, Dual,
3000 W (1400 W inner,
1600 W outer)
Ribbon element, 2500 W
Infinite switch, low heat
5 L1
3
L2
4 H2
P
2
1
H1
Infinite switch
Infinite switch, custom control
Infinite switch
5 L1
3
L2
4 H2
P
2
1
H1
Dual element infinite
switch
Temperature sensor
Cooling fan motor
© 2006 Maytag Services
!
Component
Disconnect wiring to element and
measure cold resistance of terminals. ........
Measure voltage at element .......................
Disconnect wiring to element and
measure cold resistance of terminals. ........
Measure voltage at element .......................
Disconnect wiring to element and
measure cold resistance of terminals. ........
Measure voltage at element .......................
Remove wiring from H1 and H2. Connect
volt/ohms meter to H1 and H2.
Measure the following for voltages at LO,
MED, HI:.....................................................
Voltage between H1 and H2.......................
Remove wiring from P1 and P2. Connect
volt/ohms meter to P1 and P2. Measure
the following for voltages at LO, MED,
HI:...............................................................
Voltage between P1 and P2 .......................
Single/dual element temp settings ..............
Voltage between L1 and L2 ...... 240 VAC.
Remove wiring from H1 and H2. Connect
volt/ohms meter to H1 and H2. Measure
the following for voltages at LO, MED, HI: ..
Voltage between H1 and H2.......................
Remove wiring from S1 and S2.
Connect volt/ohms meter to S1 and S2
and measure voltages at LO, MED, HI .......
Voltage between S1 and S2 .......................
Measure resistance .................................... Approx. 1000 Ω at room temperature,
Measure voltage .........................................
Check motor windings to ground ................
WARNING
Test Procedure
16026926
Results
Approx. 133 to 147 Ω.
120 VAC.
Approx. 38 to 42 Ω.
Inner:
Approx. 34 to 37 Ω.
Outer:
240 VAC.
Approx. 21 to 24 Ω.
240 VAC.
Approximate
Time On Time Off
SIMMER 5% 95%
MED (5) 55% 45%
HI 100% 0%
240 VAC.
Approximate
Time On Time Off
SIMMER 5% 95%
MED (5) 35% 65%
HI 100% 0%
240 VAC.
Approximate
Time On Time Off
SIMMER 5% 95%
MED (5) 35% 65%
HI 100% 0%
240 VAC.
Approximate
Time On Time Off
SIMMER 5% 95%
MED (5) 45% 55%
HI 100% 0%
240 VAC.
75° F (23.8° C).
120 VAC.
No continuity.
RPM: Approx. 1670 to 2070.
15