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Oven won't unlock

Maytag Advanced cooking system, electric wall oven, single. 30 inch.

I tried cleaning the oven, and half way through the process got an "F1" error message. I pressed cancel and waited, but even now that the oven is cool it won't unlock. I've turned off the power and back on again, no go.


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Re: Oven won't unlock

You sound like you have a temp sensor error. Without knowing your exact model I'd say that you can open the door with a coat hangar , the latch is at the top in the center it is locked to the right (facing the front of the door), and it is spring loaded

Remove the temp sensor and take a ohm reading.
Appliance Tip of the Day: Oven Temperature Sensors Demystified grasshopper%202.gif Everyone knows what thermostats do: turn something on and off based on temperature. If your range has an electronic range control (ERC) board with the digital LED display, it doesn't have a thermostat. You know what I'm talking about, most ERCs look something like this.
tn_tempsensors.jpgRanges with ERCs use a sensor to "feel" the temperature in the oven cavity and sends that information to the ERC. The ERC then makes decisions about about heating the oven and controls the burner (in gas ovens) or heating elements (in electric ovens). Typical styles of range temperature sensors are shown
Inevitably, your range will one day start acting goofy and you'll need to check the oven sensor to see if it's causing a problem. On most ranges, a big clue that the sensor is the problem is if you're getting an F1 error code in your ERC display. So how do you check the sensor? Keep reading.
Oven sensors sense the temperature is the oven cavity by increasing their internal resistance, measured in ohms as the oven's temperature increases. This change in ohm resistance tells the ERC the oven cavity temperature and it turns the heating elements or burner on and off, as needed. Now, hang with me, grasshopper, 'cuz we're getting to the good part.
At room temperature, 70°F, the resistance of the most common sensors used today is 1000-1100 ohms. What this means is that if you pull those sensor wires to measure the sensor's resistance and it reads slap-a$$ open, why, it don't take a rocket scientist like myself to figger out that you got yourself a bad sensor! Wasn't that easy?
Just for grins, I've included the table below to show you the sensor resistance reading at various temperatures. Viva la resistance!
Oven Sensor Resistances Temperature (°F) Resistance (ohms) 100 1143 200 1350 300 1553 350 1654 400 1753 500 1949

Posted on Dec 12, 2007

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