Service manual

15 RS2310005 Rev. 0
Troubleshooting Procedures
WARNING
!
To avoid risk of electrical shock, personal injury or
death, disconnect power and gas supply before
servicing, unless testing requires it.
Sealed Top Burners
Spark Ignition
Problem Possible Cause Correction
Burner will not light.
“SPARK” at top burner
ignitors.
• Burner venturi, caps or ignition
ports clogged.
• Poor ground on burner cap.
• Low gas pressure.
• Weak spark module.
• Clean burner venturi, caps, and ignitor
ports.
• Clean burner cap.
• Verify correct gas pressure.
• Replace spark module.
Burner will not light. No
“SPARK’ at top burner
ignitors. Burner knob
pushed in and held in
“LITE” position.
• No 120 VAC to unit.
• Micro switch contacts not closing.
• Failed wiring or poor connection at
burner cap electrode and electrode
socket.
• Failed spark module.
• Electrode dirty, burner cap dirty.
• Cracked or broken electrode,
electrode wire or electrode socket.
• Verify electricity at wall outlet.
• Verify correct wiring and connection
are tight.
• Verify correct wiring and connection’s
are tight.
• Verify operation of spark module.
Replace if failed.
• Clean electrode and burner cap.
• Replace electrode wire.
No spark or only random
spark at one ignitor.
• Cracked ignitor or a pinched ignitor
lead wire.
• Poor connection of ground or lack
of continuity to ground of ignitor.
• Cracked or broken ignitor extension
lead.
• Replace ignitor lead or electrode.
• Tighten ground connection and correct
any breaks in ground path from ignitor
to unit ground.
• Replace ignitor.
Intermittent or
occasional spark after
unit is turned off.
• Reversed polarity. W hen polarity is
correct, no voltage is present at
neutral to ground and no voltage to
spark module with switch in “OFF”
position.
• W ith all switches in the “OFF” position,
verify voltage at “N” terminal of the
spark module to ground. If voltage is
present, polarity is reversed.
Unit continues to spark
after it is turned off.
• Failed valve switch.
• Switch has been pulled up and off
of fixed position on valve so that it is
not turned to “OFF” position with
valve stem.
• Verify correct wiring and connection’s
are tight.
• Verify wiring is not pinched.
• Replace switch.
• Carefully reposition switch on valve
stem and rotate valve from “OFF” to
“HIGH” several times to verify switch is
not broken.
Sooting from burner
flame.
• Too little primary air.
• Burner head not positioned
correctly.
• If using LP gas, range may not be
properly converted.
• Open air shutter.
• Level burner head.
• Verify correct conversion procedures.
Some yellow tipping is normal on LP.