Jan 142011
 

Most newer ovens use an oven sensor to keep track of the cycling temperatures, if your model has a control board then it has a sensor. Testing and replacing the sensor can be done from the front of the unit in most cases.

Start by opening the door and looking on the back wall of the unit. The sensor is located on the back wall in most instances.

If I had to describe the sensor I would say it look’s like a metal pencil of sorts.. This small rounded metal sensor is held to the back wall  with two screws, removing the screws will let the sensor pull forward this will enable you to access the quick connect. Disconnect the sensor and replace.

If you are still trying to diagnose your ovens sensor you will need a volt meter to ohm the sensor. The oven sensor should read 1080 ohms at room temp.

If the sensor is off it can cause the control to have an error code, if the sensor test good you either have a bad control or wire harness issue. Investigating some of these sensor error codes myself I have found several wire harness cut from rubbing on the thin sheet metal over the years.  Verify the ohm value before ordering parts, doing so will aid in proper diagnostics.

Jan 142011
 

Testing a gas oven with a simple multimeter will aid in a proper diagnosis. If your glow bar is glowing red and no gas makes it down the flue it can still be bad.

Using an amp clamp you can verify a ignitors proper operation. In this explanation I’m referring to the flat style ignitor, more commonly used in the appliance industry.

The ignitor need’s to draw 3.2 amps to open the gas safety valve, when the ignitor reaches the correct amps the valve opens and the gas will light. Over time an ignitor will get weak or just break, replacing the oven ignitor is an easy feat with the correct tools.

Remove bottom of the inside of the oven, this will lead you to the igntor. Once the panel and shields are out of the way you will see the ignitor on the burner tube.

Tip here is when removing the screws from the burner base add a drop of oil, doing so will aid in the ignitor screws removal. With the ignitor off the tube you will have to disconnect the wires, if there is not a harness you will need to cut and splice the new oven ignitor into place.

Using only ceramic wire nut is recommended they hold up to heat better then plastic.  Once the oven ignitor is in place assembly the unit and test for proper operation.

Jan 142011
 

Removing an oven door can sometimes seem like an impossible feat, I will talk about several different oven door removal process.

First and most common is by placing the oven door in the broil position, once in position you simply lift and slide the door off. The door may not want to come at first, by lifting on one end at a time try to lift the door evenly, this will prevent the door and hinge from binding.

Another very common style hinge has a locking mechanism, it ensures the door will not be lifted or pulled off the oven itself.

Using a small screwdriver simply pry the lock down and out of position, if you are unsure of where the hinge lock is, they are situated at the end of the hinge where it enters the cavity. The screwdriver will allow you to retrieve the metal tab out of the cavity and in the unlock position, once in unlock position lift the oven door up as if you were shutting it and pull out.

Once out you will see how the end of the hinge connects to the hinge mount. If replacing the hinges you may have to put them back into the lock position to remove the hinge from the door casing.

On some older Kitchen Aid  ovens the door needs to be in the broil position, and you will need to pull straight out on the bottom to remove the door, took me  a minute to figure this one out a few weeks ago.

Removing the door will allow you to get to that dirty door glass, take extra per-cation when removing the glass, also assembly the glass in the same way it when in. The middle glass has a special treatment on it to reflect the heat back in, this helps keep the outer pain of glass cooler since there are oven glass temperature restrictions.