follow this test and fix it. God bless you
Bake Element
If the oven won't turn on, check the bake
element. The bake element is a black tube near the bottom of the oven
about as thick as a pencil. When it is operating normally, the bake
element will glow red hot. If the oven won't turn on the bake element
may have burned out. It is often obvious to see where the bake element
has shorted out because there will be a hole or break in the element. If
the bake element has burnt out or shorted it should be replaced.
Oven Igniter
Even though the oven igniter may be glowing,
it may be too weak to allow the gas valve to open. If the oven won't
turn on and the oven igniter glows for more than 90 seconds without
igniting the gas flame, the oven igniter should be replaced. This is the
most common part that fails when the oven won't turn on.
Broil Element
If the oven won't turn on, check the broil
element. The broil element is a black tube near the top of the oven
about as thick as a pencil. When it is operating normally, the broil
element will glow red hot. If the oven won't turn on the broil element
may have burned out and caused something else to short out. It is often
obvious to see where the broil element has burned out because there will
be a hole in the element or blisters on the outside of the element.
Test the broil element using an Ohm meter. If it has continuity it's OK.
If not, it should be replaced.
Incoming Power Problem
Although not as common, if the oven won't
turn on it is possible that the appliance is not receiving proper
voltage. Electric ovens require 220 volts of alternating current. If for
some reason the appliance is receiving significantly less, the oven
won't turn on. Check for proper voltage using a volt meter at the socket
where the appliance plugs in.
Oven Control Board
The oven control board has a set of relays
that turn on and off power to the bake and broil circuits according to
the customer settings and sensor input. If the oven won't turn on the
problem is usually with the heating components. However, if the oven
control board is bad, it might not send voltage to the heating
components. To determine why the oven won't turn on, first test the
simpler components in the circuit. The oven control board usually can't
be tested and will have to be replaced if it is defective.
Thermal Fuse
Although not as common, if the oven won't
turn on the thermal fuse may have blown. The thermal fuse is designed to
protect the appliance and help to prevent a fire. If the oven gets too
hot, this fuse trips. The thermal fuse is not resettable and will have
to be replaced. It can be checked for continuity. If it has continuity,
it's OK. Not all ovens have a thermal fuse.
Relay Board
If the oven won't turn on and the appliance
is equipped with an oven relay board, one of the relays on the board may
have failed. Normally the oven relays are located on the main clock
control board and not on a separate oven relay board. If the oven won't
turn on it is more likely that the cause is one of the more common
problems listed for the model. If the other, more common problems have
been checked and Your oven has a relay board, it may need to be
replaced. Oven relay boards are not repairable.
Oven Thermostat
If the oven won't turn on, the oven
thermostat might be defective. Although this is not as common as other
components, the oven thermostat sometimes fails completely and does not
allow current to pass through. After checking other, more common
components, consider replacing the oven thermostat.
Heat Selector Switch
If the oven won't turn on, be sure the heat
selector switch is set to the right position. The heat selector switch
completes the circuit to either send voltage to the bake or broil
circuit. If the oven won't turn on, the heat selector switch might also
be defective, although this is not very common. The heat selector switch
is not repairable, if it is defective it will need to be replaced.
Oven Safety Valve
The oven safety valve works with the oven
igniter to provide gas to the burner. If the oven won't turn on it is
possible that the oven safety valve is defective. However, this is very
rare. Most often, the oven igniter is too weak to allow the oven safety
valve to open. If the oven won't turn on, check the igniter first.
Oven Valve and Pressure Regulator
If the gas oven won't turn on the oven valve
and pressure regulator might be at fault. This is not common. Very often
people misdiagnose a defective oven valve and pressure regulator when
the oven won't turn on However, this is almost never the cause. Look at
other, more common components before replacing these.
