Troubleshooting Procedures; Troubleshooting Chart - Jenn-Air JDS8850BD Service Manual

Troubleshooting Procedures

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.

Troubleshooting Chart

Problem
Burners will not ignite; no
spark at top burner.
Burner will not ignite. No
spark to burner ignitors
when burner knob is rotated
to "LITE" position.
No spark or only random
spark at one ignitor.
Unit continues to spark after
knob is turned to OFF
position.
No oven operation in bake or
broil.
No bake element operation
Oven smokes/odor first few
times of usage.
Failure Codes.
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WARNING
Possible Cause
Poor ground on burner cap .......................
Weak or failed spark module ....................
Low gas pressure......................................
Clogged burner port ..................................
No 120 VAC to range................................
Micro switch contacts not closing .............
Faulty wiring. Bad connection at burner
electrode and electrode socket.................
Inoperative spark module .........................
Electrode dirty. Burner cap dirty ...............
Cracked or broken electrode, electrode
wire or electrode socket ............................
Check for cracked ignitor or pinched
ignitor wire ................................................
Poor continuity to burner cap....................
Bad ground connection or lack of
continuity to ground or ignitor ...................
Cracked or broken ignitor extension
lead ...........................................................
Shorted valve switch/harness ...................
Switch has slipped off the valve................
No voltage to control. ................................
No voltage from control.............................
Loose wire connection or broken wire ......
Open bake element...................................
Loose wire connection or broken wire ......
Open bake relay........................................
Normal ...................................................... • Minor smoking and/or odor is normal
Electronically Controlled ........................... • See "Fault Code Chart."
16026929
Correction
• Clean burner cap.
• Replace spark module.
• Verify pressure 4" WCP for natural,
10" WCP for LP.
• Clean burner cap.
• Verify voltage at wall outlet.
• Check wiring against appropriate
wiring diagram. Verify all terminals
and connections are correct and
tight. Check micro switch contacts.
• Check wiring against appropriate
wiring diagram. Verify all terminals
and connections are correct and
tight.
• Check module according to testing
procedures information.
• Clean electrode or burner cap.
• Replace electrode.
• Replace ignitor lead or electrode.
Clean burner cap and lead.
•
• Tighten ground connection and
correct any breaks in ground path
from ignitor path to unit ground path.
• Replace ignitor lead.
• Replace switch/harness. If shorting
is caused by excessive spillovers,
customer education is advised.
• Carefully reposition switch on valve
and rotate from OFF to high, several
times to verify switch is not broken.
• Check for 120 VAC at control. If no
voltage check power source.
• Check 120 VAC to ignitor, if no
voltage, replace control.
• Verify all connections are clean and
tight, replace broken wire.
• Check element for continuity,
replace if failed.
• Verify all connections are clean and
tight, replace broken wire.
• Verify 240 VAC at bake element.
the first few times of oven usage.
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