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Range Top Components
The range top components consist of the following:
Maintop burner assembly (cooktop, burners, burner
caps and heads, igniter and switches, spark module,
manifold, and burner valves), thermal switches, and
door lock assembly.
Maintop Burner Alignment
For proper operation of the burner, alignment of
the ori
fi
ce holder, ori
fi
ce and air/gas mixer tube
must be correct. The alignment can be checked by
placing 7mm or 9/32” nutdriver over the ori
fi
ce to
exaggerate the angle. The nutdriver should stand
straight, indicating the alignment and gas injection
angle are correct. A slight downward pressure may
be necessary to seat the nutdriver over the “Ori
fi
ce
Retainer Ring.”
If an angle adjustment is necessary, remove the
burner cap, head and bowl to inspect the ori
fi
ce
holder and the brackets that hold them in place.
Adjust as necessary. A misaligned burner may result
in uneven
fl
ames around the burner head.
Surface Burner Adjustments
Standard adjustments to the air shutter and gas
metering ori
fi
ces are not possible on sealed burners.
If burner
fl
ames appear to be abnormal, check the
following:
• Check gas pressure available to the burners. The
required operating pressure is 5” W.C.P. (4" W.C.P.
for model PGS968) Natural Gas or 10” W.C.P. LP
(Propane) Gas. The pressure reading can be taken at
the BROIL, BAKE or TOP burner ori
fi
ces.
• Check for drafts entering the burner box from
behind the range. Strong drafts beneath the
maintop can extinguish the burner and/or cause
erratic burner
fl
ames.
• Check for blockage or partial blockage of the
ori
fi
ce. Inspect the ori
fi
ce to be sure it has been
drilled on center and is free of debris or burrs.
• Check the burner alignment per the “Burner
Alignment” section of this manual.
• If the
fl
ames blow and lift off the burner and the
cause of the problem cannot be found, installing
an ori
fi
ce with smaller diameter openings may
solve the problem. In a high altitude installation
(above 6000 ft.), the ori
fi
ces will usually have to be
downsized.
Note:
Refer to the Illustrated Parts Catolog for
speci
fi
c issues of high altitude modi
fi
cations when
needed.
Smaller Orifi ces for Natural Gas
Burner
Size
Burner
Size
RF
No. 51
LF
No. 53
RR
No. 56
LR
No. 54
Available Smaller Orifi ces:
Model PGS908
Smaller Orifi ces for LP Gas
Burner
Size
Burner
Size
RF
No. 60
LF
No. 64
RR
No. 70
LR
No. 66
Smaller Orifi ces for Natural Gas
Burner
Size
Burner
Size
RF
No. 53
LF
No. 53
RR
No. 56
LR
No. 54
Model PGS968 and PGS975
Smaller Orifi ces for LP Gas
Burner
Size
Burner
Size
RF
No. 60
LF
No. 64
RR
No. 70
LR
No. 66
