Model #MER6770AAB MAYTAG free standing, electric

  • Control Panel
    3 Results
  • Top Assembly
    3 Results
  • Body
    3 Results
  • Oven
    3 Results
  • Door (upper)
    3 Results
  • Door (lower)
    3 Results
  • Wiring Information
    3 Results
  • Wiring Information
    3 Results
  • Wiring Information
    3 Results

Question and Answers


have electric range mer6770aab sometimes oven goes off and reads F1-2. Any ideas?


Thank you for your question and I understand your concern.

The F1-2 fault code implies a "runaway lower oven".  The oven temperature sensor probe will need to be disconnected and measured for proper Ohm resistance.

The oven temperature sensor probe should measure 1050-1100 Ohms of resistance at room temperature. The sensor is located inside the lower oven cavity in the upper rear corner.

To Access Oven Sensor:


  1. Disconnect the appliance from power source before servicing.
  2. Open oven door and remove two (2) screws securing sensor to oven cavity. Gently pull through cavity wall.
  3. Disconnect the oven sensor at the connector blocks and remove/replace as necessary.
  4. Reattach the connector blocks and reassemble.


If the oven temerature sensor measures 1050-1100 Ohms, then it likely has a faulty electonic control board or a loose or bad connection in the oven temperature sensor circuit where it connects to the electronic oven control board.

The oven sensor is part #12001656 for model MER6770AAB which can be ordered from

 I hope this is helpful. If I may be of further assistance as more details become available, please reply to this post. 

If you get to the point where you need to have a service technician diagnose and repair this failure, you can schedule service through this link: Sears Home Services.

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Joey S -
Sears Technician
October 03, 2013

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