41
Quadra-Fire • QFI30FB-C, QFI35FB-C • 2221-901 Rev. S • 2/15
Troubleshooting (continued)
Symptom
Possible Cause
Corrective Action
4. Pilot lights but con-
tinues to spark, and
main burner will not
ignite. (If the pilot
continues to spark
after the pilot
fl
ame
has been lit,
fl
ame
recti
fi
cation has not
occurred.)
A. A shorted or loose connection in
fl
ame sensing rod.
Verify all connections to wiring diagram in manual. Verify connec-
tions underneath pilot assembly are tight. Verify
fl
ame sense or ig-
niter wires are not grounding out to metal chassis, pilot burner, pilot
enclosure or screen if present, or any other metal object.
B. Poor
fl
ame recti
fi
cation or contami-
nated
fl
ame sensing rod.
With
fi
xed glass assembly in place, verify that
fl
ame is engul
fi
ng
fl
ame sensing rod on left side of pilot hood. Flame sensing rod
should glow shortly after ignition. With a multi-meter, verify that
current in series between module and sense lead is at least 0.14
microamps. Verify correct pilot ori
fi
ce is installed and gas inlet is set
to pressure speci
fi
cations. Polish
fl
ame sensing rod with
fi
ne steel
wool to remove any contaminants that may have accumulated on
fl
ame sensing rod.
C. Module is not grounded.
Verify module is securely grounded to metal chassis of appliance.
Verify that wire harness is
fi
rmly connected to the module.
D. Damaged pilot assembly or con-
taminated
fl
ame sensing rod.
Verify that ceramic insulator around the
fl
ame sensing rod is not
cracked, damaged, or loose. Verify connection from
fl
ame sensing
rod to white sensor wire. Polish
fl
ame sensing rod with
fi
ne steel
wool to remove any contaminants that may have accumulated on
fl
ame sensing rod. Verify continuity with a multi-meter with ohms set
at lowest range. Replace pilot if any damage is detected.