Whirlpool SF3000SE W Service Manual page 75

OVEN BURNER IGNITER
OVEN
BURNER
IGNITOR
Steady State Current = 2.5 TO 3.0 Amps @ 115 ±1 VAC @
75˚F ±10˚ Ambient.
Cold Resistance = 50 Ω TO 1100 Ω @ 75˚F ±10˚ Ambient.
Maximum Operating Temperature Not To Exceed 2650˚F @
115 ±1 VAC @ 75˚F ±10˚ Ambient.
Description
The purpose of the oven burner igniter is to ignite
the gas at the bake/broil burner.
The silicon carbide oven igniter material pro-
vides the temperature needed to safely ignite
the oven burner. When electrical power is
applied to the silicon carbide, the temperature
of the material increases by two, and the resis-
tance of the material decreases. By placing a
current-sensitive safety valve electrically in
series with the oven igniter, the safety valve
opens when the igniter goes above a certain
temperature. This combination used in the
oven circuit is designed to have the safety
valve open when the oven igniter is at, or
above, 1800˚ F. The current in the circuit is
3.2 amps.
Cooking Products Service Manual
Original July, 1996
© 1996 Whirlpool Corporation
Test Procedure
WARNING
Electrical Shock Hazard
Disconnect from electrical supply before ser-
vicing unit.
Failure to do so could result in death or
electrical shock.
1. Igniter does not glow.
a) Turn the gas off and pull the range
away from the wall.
b) Disconnect the oven igniter quick-dis-
connect from the main harness con-
nector.
c) Connect an ohmmeter across the ter-
minals of the igniter plug. If the meter
reads less than 1000 Ω, check the
other components in the oven circuit
for an open. If the meter reads over
1000 Ω, replace the igniter.
2. Oven igniter glows, but the gas safety
valve does not open.
a) Turn the gas off and pull the range
away from the wall.
b) Disconnect the oven igniter quick-dis-
connect from the main harness con-
nector.
c) Connect an ampmeter across the ter-
minals of the igniter plug. If the meter
reads 3.2 amps or higher, check the
gas pressure for gas at the safety
valve, and the safety valve itself.
If the meter reads less than 3.2 amps,
and the line voltage is over 100-volts
AC, replace the igniter.
If the voltage and current is normal,
check the output of the pressure regu-
lator. If the pressure drops and
bounces back more than .2 inch, re-
place the regulator.
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