Jenn-Air JDS8850BD, Service Manual

Page: 17 / 73

Testing Procedures
!
WARNING
To avoid risk of electrical shock, personal injury or death; disconnect power and gas to range before servicing,
unless testing requires power and/or gas.
© 2006 Maytag Services
16026929 17
Illustration Component Test Procedure Results
(JDS986*BD*)
E-burner assembly Verify gas is supplied ................................. Gas supplied,
Check for obstructions in burner ports.
(JDS986*BD*)
E-burner ignitor Test for resistance of spark lead ................
Test ignitor to chassis................................. Continuity.
No continuity from ignitor to chassis.
(JDS986*BD*)
E-burner tube, front Nominal air shutter setting..........................
Tolerance ................................................... .250 1/4"
.031 Approx.
1/32"
(JDS986*BD*)
E-burner tube, rear Nominal air shutter setting..........................
Tolerance ................................................... .250 1/4"
.031 Approx.
1/32"
(JDS8850BD*)
Hidden bake
element Disconnect wiring to element and
measure cold resistance of terminals. .......
Measure voltage at bake element..............
Approx. 20 Ω .
240 VAC.
Broil element Disconnect wiring to element and
measure cold resistance of terminals. ........
Measure voltage at broil element ...............
Approx. 12.5 to 18
Ω .
240 VAC.
(JDS986*BD*)
Bake element Disconnect wiring to element and
measure cold resistance of terminals. ........
Measure voltage at bake element...............
Approx. 22 Ω .
240 VAC.
(JDS8850BD*)
Warmer element Disconnect wiring to element and
measure cold resistance of terminals. .......
Measure voltage at broil element ..............
Approx. 12.5 to 18
Ω .
120 VAC.
Convection element Disconnect wiring to element and
measure cold resistance of terminals. .......
Measure voltage at convect element.........
Approx. 16.5
Ω .
240 VAC.
Convection motor,
2-speed Measure voltage........................................
Check motor windings to ground ............... 120 VAC. (tolerance: 105 to 135 VAC)
No continuity.
RPM, Lo-speed:
Approx. 1440 to 2040
RPM, Hi-speed:
Approx. 1860 to 2460
(JDS8850BD*)
Oven limit switch Normally closed, verify operation:
Open:
209° to 221° F (98° to 105° C) ......
Closed:
144° to 166° F (62° to 74° C) .....
Infinite.
Continuity.
(JDS986*BD*)
Oven limit switch Normally closed, verify operation:
Open:
253° to 267° F (123° to 131° C) ....
Closed:
188° to 212° F (87° to 100° C) ...
Infinite.
Continuity.
(JDS8850BD*)
Hi-limit temperature
switch
(Warming Drawer) Normally closed, verify operation:
Open:
135° to 145° F (57° to 63° C) ........
Closed:
114° to 126° F (46° to 52° C) .....
Infinite.
Continuity.
(JDS8850BD*)
Hi-limit temperature
switch
(Warming Drawer) Normally closed, verify operation:
Open:
95° to 105° F (35° to 41° C)..........
Closed:
79° to 91° F (26° to 33° C) .........
Infinite.
Continuity.