A digital gas cooking appliance is disclosed. The digital gas cooking appliance has the ability of self-initiating an automatic calibration process to determine an optimum valve position to be used for an electromechanical valve when igniting a gas cooking element by performing a plurality of ignition sequences for the gas cooking element at a plurality of respective valve positions of the electromechanical valve. During each of the plurality of ignition sequences, a respective ignition duration between a start of the respective ignition sequence when an igniter is active and the electromechanical valve is open, and a flame is detected by a flame detector, may be determined.

A cooking appliance includes: a gas cooking element; an igniter disposed adjacent to the gas cooking element to ignite the gas cooking element; a gas valve for regulating gas flow to the gas cooking element; a burner control mechanically coupled to the gas valve to vary the gas flow to the gas cooking element; a sensor for detecting the positioning of the burner control in an ignition range of positions; and a control circuit coupled to the igniter and the sensor and to activate the igniter in response to detected movement of the burner control into the ignition range of positions, the control circuit further configured to maintain activation of the igniter for a predetermined minimum length of time once activated.

A flame sensor assembly includes a flame sense rod and a flame sensor body. The flame sense rod includes a flame sensor end and a coupling end opposite the flame sensor. The flame sensor body defines a receptacle for receiving the coupling end of the flame sense rod, and includes an adjustable positioning bracket. The assembly also includes a wiring adapter for connecting the flame sensor body with a flame sense signal connector, and a mounting bracket adapted to mount the flame sensor body to a heating device with the flame sensor end of the flame sense rod positioned adjacent a flame of the heating device. Methods of replacing a flame sensor assembly for a heating device are also disclosed.

A cooking appliance includes a gas cooking element, an electromechanical valve fluidly coupled with the gas cooking element to regulate a flow of gas to the cooking element, a flame detector configured to detect an active state of a flame for the gas cooking element, a manually-actuated user control movable over a range of positions, and a controller coupled to the electromechanical valve, the flame detector, and the manually-actuated user control. The controller is configured to initiate a calibration process to determine an active range for the gas cooking element.

A method for determining an change in an operating condition of a gas burner appliance. In some instances, a calibration of a gas/air mixture may be performed when the combustion quality of the gas burner appliance diminishes. This may be accomplished by adjusting a throttle position of a throttle valve that throttles the gas to the gas burner appliance. After calibration has been performed, a throttle position of the throttle valve is determined, and based on the throttle position determined after calibration, a change of an operating condition of the gas burner appliance is detectable.

A flame sensor assembly includes a flame sense rod and a flame sensor body. The flame sense rod includes a flame sensor end and a coupling end opposite the flame sensor. The flame sensor body defines a receptacle for receiving the coupling end of the flame sense rod, and includes an adjustable positioning bracket. The assembly also includes a wiring adapter for connecting the flame sensor body with a flame sense signal connector, and a mounting bracket adapted to mount the flame sensor body to a heating device with the flame sensor end of the flame sense rod positioned adjacent a flame of the heating device. Methods of replacing a flame sensor assembly for a heating device are also disclosed.

A cooking appliance includes a gas cooking element, an electromechanical valve fluidly coupled with the gas cooking element to regulate a flow of gas to the cooking element, a flame detector configured to detect an active state of a flame for the gas cooking element, a manually-actuated user control movable over a range of positions, and a controller coupled to the electromechanical valve, the flame detector, and the manually-actuated user control. The controller is configured to initiate a calibration process to determine an active range for the gas cooking element.

A flame sensor assembly includes a flame sense rod and a flame sensor body. The flame sense rod includes a flame sensor end and a coupling end opposite the flame sensor. The flame sensor body defines a receptacle for receiving the coupling end of the flame sense rod, and includes an adjustable positioning bracket. The assembly also includes a wiring adapter for connecting the flame sensor body with a flame sense signal connector, and a mounting bracket adapted to mount the flame sensor body to a heating device with the flame sensor end of the flame sense rod positioned adjacent a flame of the heating device. Methods of replacing a flame sensor assembly for a heating device are also disclosed.

A method for controlling a fuel-oxidizer mixture in a premix gas burner includes: receiving a flame signal representing the presence of a flame deriving from the combustion of a fuel of a first predetermined type or a second predetermined type inside a combustion cell; accessing fuel data representing the fact that the gas fuel belongs to the first type or the second type; generating drive signals to control a gas flow regulating valve that supplies gas to the burner and to control a rotation speed of a fan configured to take in oxidative air; sending the drive signals to the gas flow regulating valve and to a motor connected to the fan. A memory unit contains first regulation data and second regulation data and is programmed to generate the drive signals based on the first regulation data or on the second regulation data, depending on the fuel data.

A digital gas cooking appliance is disclosed. The digital gas cooking appliance has the ability of self-initiating an automatic calibration process to determine an optimum valve position to be used for an electromechanical valve when igniting a gas cooking element by performing a plurality of ignition sequences for the gas cooking element at a plurality of respective valve positions of the electromechanical valve. During each of the plurality of ignition sequences, a respective ignition duration between a start of the respective ignition sequence when an igniter is active and the electromechanical valve is open, and a flame is detected by a flame detector, may be determined.