Keyslammer
Premium Member
- Model Number
- JGS9900BDS
- Brand
- Jenn-Air
- Age
- More than 10 years
Symptom: Selecting either the oven or the broiler (temp/level does not matter) - the controller says "Warming", the igniter glows (heats up), the burner ignites for about 3 seconds and the temp starts to come up and then the controller suddenly and completely resets (requiring me to power cycle the oven and reset the controller). When this happens, the display only shows the time-clock and none of the keypad inputs for the oven do anything (including CANCEL or ENTER, etc). The words "Power Fail" do not show up until I physically unplug and replug in the oven to reset the controller.
Operation and Tests Performed:
-The stove top burners work fine
-LP gas pressure is correct (0.4 psi)
-The oven igniter was replaced with fresh igniter that measures 160 ohms cold (no change)
-Oven temp sensor rod replaced (no change)
-Oven Controller swapped out with a NEW controller (no change!) - at this point I was almost certain it was the controller, nope.
-Range cooling fan tested with 115V (working fine)
-The High Temp thermal switch was bypassed with a jumper wire (thinking that might be the source of the apparent reset or power loss to the controller, no change)
-I measured the gas dual valve inputs (bake and broil both measure under 2 ohms)
-I disconnected the gas valve inputs (as a check), and the igniter did not glow (expected), but after about 10 seconds, the controller reset again...same symptom. I had to power cycle the oven to reset the controller.
At this point I am at a loss as to the cause of this problem or what I should be checking next. There is no "flame sensor" and I do not see any input to the controller that would cause it to perform a complete reset, shutting down the oven. It is interesting that the burner continues to operate for about one second after the controller resets itself. The reset is an abnormal condition (requiring me to power cycle the oven). I think I will need feedback from someone that really knows this appliance or has seen something like this before. I can provide the complete wiring diagram if needed.
Operation and Tests Performed:
-The stove top burners work fine
-LP gas pressure is correct (0.4 psi)
-The oven igniter was replaced with fresh igniter that measures 160 ohms cold (no change)
-Oven temp sensor rod replaced (no change)
-Oven Controller swapped out with a NEW controller (no change!) - at this point I was almost certain it was the controller, nope.
-Range cooling fan tested with 115V (working fine)
-The High Temp thermal switch was bypassed with a jumper wire (thinking that might be the source of the apparent reset or power loss to the controller, no change)
-I measured the gas dual valve inputs (bake and broil both measure under 2 ohms)
-I disconnected the gas valve inputs (as a check), and the igniter did not glow (expected), but after about 10 seconds, the controller reset again...same symptom. I had to power cycle the oven to reset the controller.
At this point I am at a loss as to the cause of this problem or what I should be checking next. There is no "flame sensor" and I do not see any input to the controller that would cause it to perform a complete reset, shutting down the oven. It is interesting that the burner continues to operate for about one second after the controller resets itself. The reset is an abnormal condition (requiring me to power cycle the oven). I think I will need feedback from someone that really knows this appliance or has seen something like this before. I can provide the complete wiring diagram if needed.