Jenn-Air JGS8750ADB Service Manual

Also see for JGS8750ADB: User guide Installation manual Dimension Guide

Troubleshooting Procedures! WARNINGTo avoid risk of electrical shock, personal injury, or death, disconnect power and gas to oven before servicing,unless testing requires power and/or gas.©2005 Maytag Services 16022089 11Troubleshooting ChartProblem Possible Cause CorrectionBurners will not ignite; nospark at top burner.Poor ground on burner cap .......................Weak or failed spark module.....................Low gas pressure ......................................Clogged burner port ..................................• Clean burner cap.• Replace spark module.• Verify pressure 4" WCP for natural,10" WCP for LP.• Clean burner cap.Burner will not ignite. Nospark to burner ignitorswhen burner knob is rotatedto "LITE" position.No 120 VAC to range ................................Micro switch contacts not closing..............Faulty wiring. Bad connection at burnerelectrode and electrode socket .................Inoperative spark module..........................Electrode dirty. Burner cap dirty................Cracked or broken electrode, electrodewire or electrode socket ............................• Verify voltage at wall outlet.• Check wiring against appropriatewiring diagram. Verify all terminalsand connections are correct andtight. Check micro switch contacts.• Check wiring against appropriatewiring diagram. Verify all terminalsand connections are correct andtight.• Check module according to testingprocedures information.• Clean electrode or burner cap.• Replace electrode.No spark or only randomspark at one ignitor.Check for cracked ignitor or pinchedignitor wire ................................................Poor continuity to burner cap ....................Bad ground connection or lack ofcontinuity to ground or ignitor....................Cracked or broken ignitor extensionlead............................................................• Replace ignitor lead or electrode.• Clean burner cap and lead.• Tighten ground connection andcorrect any breaks in ground pathfrom ignitor path to unit ground path.• Replace ignitor lead.Unit continues to spark afterknob is turned to OFFposition.Shorted valve switch/harness ...................Switch has slipped off the valve ................• Replace switch/harness. If shortingis caused by excessive spillovers,customer education is advised.• Carefully reposition switch on valveand rotate from OFF to high, severaltimes to verify switch is not broken.No oven operation in bake orbroil.No voltage to control. ................................No voltage from control .............................Loose wire connection or broken wire.......• Check for 120 VAC at control. If novoltage check power source.• Check 120 VAC to ignitor, if novoltage, replace control.• Verify all connections are clean andtight, replace broken wire.