Model #79079384400 KENMORE ELITE Range, Electric/Gas

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Question and Answers

Q:

frigadaire dual fuel range won't ignite after power failure. 79079384400

Q:

Oven Elements 790.79384400

A:

Thank You for choosing Sears PartsDirect.com and being a valued member. It is unfortunate to hear that you are having issues with your range and I do understand your frustration. Glad to help out. I'm looking at your model number 79079384400 and based on your symptoms, your likely failure would be either a bad element or a defective electronic oven control board. A problem with the oven temperature sensor could possibly cause this problem. 


Here are some troubleshooting tips: 

Check to see if the oven will heat properly in the broil mode. This would help verify that the broil element and the broil relay on the electronic control board are working properly. It can also verify that the oven temperature sensor probe is working properly. 

If the broil function works properly, your next step would be to set the bake function and observe the elements to see if they are heating properly. Based on similar models, I think that the bake element is designed to be energized for 54 seconds and then the broil element will be energized for 6 seconds every minute. You may find that only the broil element is heating during the bake cycle. 

If the bake element is not heating, I recommend disconnecting electrical power to the range and checking the continuity through the bake element. You should normally measure between 20 and 40 ohms through the bake element. If it is open (measures infinite resistance), then it will need to be replaced. 

If the bake element is okay, the next troubleshooting checks would involve live voltage measurements at the element. I normally do not recommend that you make these types of live voltage checks yourself. These are dangerous and are normally only performed by technicians with training and experience in safely conducting live voltage checks. If you are completely confident that you have the appropriate electrical skills to safely perform live voltage checks then you can check the voltage supplied to the element using the schematic below. The L2 voltage should be constantly supplied to the element. Extreme care should be taken when checking the L1 and L2 voltage supplied to the element. If the proper voltage is supplied to the element then it will need to be replaced since it is not heating properly. If the L2 voltage is constant but the L1 voltage is not properly supplied to the element, then the wiring connection between the electronic control board and the element will need to be checked. If the wiring is okay, then the relay on the control board is likely failed or you could possibly have a problem with the temperature sensor. Check the resistance of the temperature sensor probe circuit (with the electrical power disconnected) and compare it to the resistance chart in the second image below. If the sensor is apparently okay, then the electronic control board will need to be replaced. Youtube has excellent videos on troubleshooting and testing the heating element. 

These tips should help you diagnose and troubleshoot your oven heating problem. Make sure to disconnect electrical power when necessary and follow electrical safely guidelines. If you are not completely confident in your technical ability to safely test the range, I recommend calling a service technician to diagnose and repair this range problem. I trust this information will help you.

 

Thank you for choosing Sears PartsDirect.com.

 

SAFETY NOTICE: Be sure to disconnect power to the appliance before performing any repairs. If you are not comfortable with doing any voltage checks that might be recommended, please contact Sears for repairs. Be aware that there could be sharp edges inside the appliance that could cause cuts or other injuries to yourself or others.

Read More
Sherman_G_Wallace -
Sears Technician
December 13, 2014
Q:

Oven Elements 790.79384400

A:

Thank You for choosing Sears PartsDirect.com and being a valued member. It is unfortunate to hear that you are having issues with your range and I do understand your frustration. Glad to help out. I'm looking at your model number 79079384400 and based on your symptoms, your likely failure would be either a bad element or a defective electronic oven control board. A problem with the oven temperature sensor could possibly cause this problem. 


Here are some troubleshooting tips: 

Check to see if the oven will heat properly in the broil mode. This would help verify that the broil element and the broil relay on the electronic control board are working properly. It can also verify that the oven temperature sensor probe is working properly. 

If the broil function works properly, your next step would be to set the bake function and observe the elements to see if they are heating properly. Based on similar models, I think that the bake element is designed to be energized for 54 seconds and then the broil element will be energized for 6 seconds every minute. You may find that only the broil element is heating during the bake cycle. 

If the bake element is not heating, I recommend disconnecting electrical power to the range and checking the continuity through the bake element. You should normally measure between 20 and 40 ohms through the bake element. If it is open (measures infinite resistance), then it will need to be replaced. 

If the bake element is okay, the next troubleshooting checks would involve live voltage measurements at the element. I normally do not recommend that you make these types of live voltage checks yourself. These are dangerous and are normally only performed by technicians with training and experience in safely conducting live voltage checks. If you are completely confident that you have the appropriate electrical skills to safely perform live voltage checks then you can check the voltage supplied to the element using the schematic below. The L2 voltage should be constantly supplied to the element. Extreme care should be taken when checking the L1 and L2 voltage supplied to the element. If the proper voltage is supplied to the element then it will need to be replaced since it is not heating properly. If the L2 voltage is constant but the L1 voltage is not properly supplied to the element, then the wiring connection between the electronic control board and the element will need to be checked. If the wiring is okay, then the relay on the control board is likely failed or you could possibly have a problem with the temperature sensor. Check the resistance of the temperature sensor probe circuit (with the electrical power disconnected) and compare it to the resistance chart in the second image below. If the sensor is apparently okay, then the electronic control board will need to be replaced. Youtube has excellent videos on troubleshooting and testing the heating element. 

These tips should help you diagnose and troubleshoot your oven heating problem. Make sure to disconnect electrical power when necessary and follow electrical safely guidelines. If you are not completely confident in your technical ability to safely test the range, I recommend calling a service technician to diagnose and repair this range problem. I trust this information will help you.

 

Thank you for choosing Sears PartsDirect.com.

 

SAFETY NOTICE: Be sure to disconnect power to the appliance before performing any repairs. If you are not comfortable with doing any voltage checks that might be recommended, please contact Sears for repairs. Be aware that there could be sharp edges inside the appliance that could cause cuts or other injuries to yourself or others.

Read More
Sherman_G_Wallace -
Sears Technician
December 13, 2014

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