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How to Test an Oven Bulb

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If the bulb in your oven does not light up when the switch is ON, you need to test if the bulb is burned out or not. If you follow the simple steps described below, we think that you will be able to test the bulb and identify if it is bad.

  1. 1 Take precaution: Turn off the power source by putting the control panel switch at OFF position or pulling out the fuse for the range. Unplug the power cord if there is any. Be absolutely sure that the range is not getting power by turning ON the switches for each heating element. With the power OFF and the switches of the elements ON, wait for about three minutes. Put your hand close to the heating elements; avoid touching the heating elements. You should not feel any heat if the power is OFF. Turn the switches at OFF position.
  2. 2 Remove protective cover: The oven bulb is protected by high heat-resistant wire or glass cover. This protective cover is normally held by screws. Remove the screws using a screw driver. Pull off the cover using a soft cloth. Make sure that the cover is not dropped on hard surface.
  3. 3 Remove bulb: Make sure that the bulb is not hot. Remove the bulb by using a soft cloth. Avoid exerting excessive pressure on the bulb; excessive pressure may break the bulb and create problems including cuts on your hand. Most of the cases the bulbs are held by threaded receptacles; you will have to unscrew the bulb by rotating it in the counter-clockwise direction.
  4. 4 Test bulb: If a regular bulb fits in the oven bulb receptacle, install a working regular bulb. If a regular bulb does not fit the receptacle, buy a new appliance bulb from an appliance parts store and install it. Turn ON power and the light switch. If the bulb lights up, the oven bulb is bad and you need to replace it with a similar appliance bulb. Read how to replace an oven bulb for detail instructions. Turn OFF power at the end of the test.
  5. 5 Conclude test correctly: At the end of the test you may need to leave the area to buy parts. Make sure that you put all detached parts in place so that children do not get hold of them and get into unfortunate accidents. Turn the power OFF. Remember that SAFETY is number one.