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Level of DifficultyEasy
Time to do repair:15 - 30 mins
CustomerLarry from Bernalillo NM
Convection oven cooling fan runs all of the time
TURN OFF BREAKER PROVIDING POWER TO OVEN
First I tested the oven thermostat after removing the two screws attaching it to the back of the oven and pulling the thermostat out far enough to unplug it. I tested the thermostat using a multi tester set for testing OHMS. The test meter read 1080 ohms indicating that the thermostat was OK. I reinstalled the thermostat after plugging the wires back in and carefully feeding them back into the rear of the oven then replacing the two screws previously removed.
I then removed four screws holding the oven in place (Located inside on both sides of the oven - easier to remove oven door first) I slid the oven out being careful not to damage the pigtail providing power to the oven. I had studied the schematic and found a fan control located on the right top of the oven under an access cover. Remove the screws holding this cover in place (about 10 or 12 screws)slide cover off and this exposes the fan control. It has one red and one blue wire attached to it. This fan control should not have continuity when at room temp. I checked continuity with the multi tester and the fan control was on at room temperature. This fan control should not have continuity unless the temperature is around 200 deg f. I replaced the fan control by removing two screws holding it in place and unplugging the two wires connected to it. (BE SURE POWER IS TURNED OFF!!!) Reconnect the two wires to the new fan control and reattach the two screws holding it in place. Replace the access cover, slide oven back into cabinet and reattach using the four screws. Replace oven door and re-energize power to the oven. It takes a few minutes for the oven to get hot enough to turn on the cooling fan. (The cooling fan IS NOT the same fan that you can see when the oven door is open-that is the convection fan the cooling fan is visible through the top vents over the oven door)