Troubleshooting Procedures - Maytag DGRSC Service Manual

Troubleshooting Procedures

To avoid risk of electrical shock, personal injury or death; disconnect power and shut off gas to unit before
servicing, unless testing requires power.
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.
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!
WARNING
Possible Cause
Poor ground at ignitor..................................
Weak or failed spark module.......................
Low gas pressure ........................................
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 .............................................
Cracked or broken electrode, electrode
wire or electrode socket ..............................
Check for cracked ignitor or pinched ignitor
wire .............................................................
Poor continuity to ignitor..............................
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 ..................
16023219
Correction
• Verify spark.
• Replace spark module.
• Verify pressure 4" WCP for
natural, 10" WCP for LP.
• 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.
• Replace electrode.
• Replace ignitor lead or electrode.
• Verify spark.
• 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.
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