Diagnostics And Service Information - GE C2S985 Technical Service Manual

Diagnostics and Service Information

Problem
Burner fl ames are
very large, yellow, or
yellow-tipped
Burners do not light
Burner control knob
will not turn
Ticking sound of spark
igniter persists after
burner lights
Ticking sound persists
after burner is turned
OFF
Possible Causes
Incorrect gas being used.
The combustion quality of
burner fl ames needs to be
determined visually.
Regulator malfunction.
Plug on cooktop is not
completely inserted in the
electrical outlet.
Gas supply is not connect-
ed or turned ON.
A fuse may be blown or a
circuit breaker tripped.
Burner parts not replaced
correctly.
Holes or slits in burners
clogged.
Liquid in burner base due
to spillage.
Orifi ces plugged or dirty.
Igniter switch defective.
Igniter wire defective.
Spark module defective.
Knob is in the OFF position. • The knob must be pushed in before it can be
Improper fl ame sensing.
Be sure the knob is in the
OFF position.
– 68 –
What to Do
• Check for correct gas supply.
• Use the illustrations below to determine if the
burner fl ames are normal. If the burner fl ames
look like A, check for dirty burners and orifi ces.
Clean or replace. Normal burner fl ames should
look like B or C, depending on the type of gas you
use. With LP gas, some yellow tipping on outer
cones is normal.
B–Yellow tips on
A–Yellow fl ames:
outer cones:
Call for service
Normal for LP gas
• Check output gas supply.
• Make sure electrical plug is plugged into a live,
properly grounded outlet.
• See the Installation Instructions that came with
the cooktop.
• Replace the fuse or reset the circuit breaker.
• Make sure pins in the burner head are properly
located in the burner base holes.
• Clean or replace as necessary. Make sure all
components are dry before reassembly.
• Remove burner ring to check. Clean and dry thor-
oughly before reassembly.
• Clean or replace as necessary.
• Replace igniter switches.
• Connect igniter wire.
• Replace spark module.
turned; it can only be turned in a counterclock-
wise direction.
• Check for wrong igniter wiring.
• Replace the igniter.
• Remove knob and check the bottom of knob for
buildup of soil. If ticking persists, replace igniter
switches.
C–Soft blue fl ames:
Normal for natural gas