When your Jenn Air stove turns off by itself, the touchpad is the most likely cause, especially when some buttons respond intermittently or not at all. A faulty touchpad can interrupt normal operation and should be replaced. On an electric Jenn Air range, also inspect the power cord and terminal block for loose, overheated, or burnt connections. Damaged terminal block connectors, cord terminals, or power cord prongs can cause intermittent power loss and may require an electrician to check the receptacle. If a surface element starts working again after turning its control off and back on or selecting another heat setting, the control board may be failing. Loose or damaged wire connectors can also interrupt power, so check the wiring from the main power cord for breaks or burn marks. Less commonly, a failed relay board or main control board can shut down the stove when a relay or connection fails. Disconnect power before testing or repairing your appliance. Enter your Jenn Air model number to find the exact touchpad, power cord, terminal block, control board, wire connector, relay board, or main control board for your stove.
01 - Jenn Air Range/Stove/Oven Touchpad
If a stove turns off on its own, determine if some of the buttons on the touchpad respond intermittently or not at all. If so, it's likely the touchpad is faulty and should be replaced.
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If the power cord connections in the terminal block on your electric range are not secure the wire can overheat, burning the connections on the terminal block, and melting the coating on the wires. Check to ensure the connections are tight and not burnt. If the terminal block connectors are burnt, the terminal block should be replaced. If the power cord terminal connectors are burnt or damaged, the power cord should be replaced. If the power cord prongs are burnt, a new power cord should be installed and the receptacle checked and replaced if necessary by a licenced electrician.
If the stove surface element starts working again when the surface element dial or control is turned off and back on or to a different heat setting, it's likely that the control board is the cause of the stove turning off on its own. You should confirm that the surface element control is functioning normally and the appliance's power cord and terminal block are in good condition before considering a control board replacement.
Inspect the wiring and connectors, especially coming from the main power cord. A loose connection can cause intermittent power failure. Inspect the wiring for breaks or burn marks. Repair wiring as needed.
Some ovens are equipped with a relay board. The relay board has several relays which control the electrical current to the heating element, and other components of the stove. If one or more of the relays on the relay board has failed, the oven may shut off. If the relay board is defective, replace it.
The main control board sends power to all the components in the stove. If the control board connections are loose, or burnt, or the control board is turning off on its own, one of the relays or other components may be bad and the control will need to be replaced.