Page 27
P/N 316439221
If the oven ignitor does not glow check for proper voltage to the ignitor. If the voltage is correct then the
ignitor is defective. If the voltage is incorrect then the EOC relay may not be closing, the oven safety
valve may be open, or the wiring connections may be faulty. If the oven ignitor glows but the oven
burner fails to light then there are four main possible causes for failure.
In order to open the gas safety valve and allow
gas to
fl
ow to the burner tube the ignitor must cre-
ate a minimum 2.9 amp draw through the safety
valve circuit.
Test the oven ignitor with an amp meter to deter-
mine if it is creating the proper amp draw. Do not
assume that an ignitor is good simply because it
is glowing brightly. Look at the examples in Fig. 2
& Fig. 3.
The ignitor in Fig. 2 is glowing brightly however
the amp draw from this ignitor is only 2.79 amps
and may not open the gas safety valve properly.
The ignitor in Fig. 3 is not signi
fi
cantly brighter
than the one in Fig. 2 but the amp draw created
(2.9 amps) should be suf
fi
cient to open the safety
valve if the gas supply and pressure are correct.
Fig. 2
Fig. 3
If the oven ignitor provides the proper amp draw
through the safety valve circuit and the gas sup-
ply and pressure have been veri
fi
ed to be correct
but the safety valve still will not open, then the
fault is within the safety valve itself.
Fig. 4 shows a typical single burner gas safety
valve and identi
fi
es the main parts.
Typical Safety Valve
Wire Terminals
Gas Inlet
Fig. 4
Outer Case
Ori
fi
ce Hood
Check the lever on the regulator to be sure that it
has not been turned off. This lever turns the gas
off to the oven safety valve only. It does not affect
the surface burners. Fig. 1 shows the regulator
lever in the on position.
Lever in
“ON”
Position
Fig. 1
Verify the incoming line voltage to the range. The
minimum acceptable voltage is 108 VAC when
tested under load. Proper polarity of the power
supply must also be veri
fi
ed.
DIAGNOSING OVEN COMPONENT FAILURE
Incorrect Voltage
Gas Regulator Cut Off Lever
Faulty Oven Ignitor
Faulty Gas Safety Valve
