Gas valve with overpressure diagnostics

A valve assembly for controlling flow of a fuel to a combustion appliance for combustion by the combustion appliance, the valve assembly comprising:

• a valve body having an inlet port and an outlet port, with a fluid path extending between the inlet port and the outlet port;
• a first valve situated in the fluid path between the inlet port and the outlet port;
• a first valve actuator for selectively moving the first valve between a closed position, which closes the fluid path between the inlet port and the outlet port, and an open position;
• a first pressure sensor in communication with the fluid path of the valve body, the first pressure sensor sensing a first pressure of the fuel in the valve body;
• a valve controller physically secured relative to the valve body and in operative communication with the first pressure sensor, the valve controller comparing a measure related to the sensed first pressure of the fuel in the valve body with a first threshold value, and when the measure related to the sensed first pressure of the fuel in the valve body is found to go beyond the first threshold value, the valve controller detecting a valve event;
• the valve controller including a non-volatile memory for storing an indication of the valve event, wherein the indication of the valve event comprises one or more of:
• a duration of the valve event defined as the time that the measure related to the sensed first pressure of the fuel in the valve body remains beyond the first threshold value;
• a classification of the valve event into at least one of a plurality of event classifications;
• a cumulative number of the valve event over the life of the valve assembly;
• and
• a communication link operatively coupled to the valve controller for outputting the indication of the valve event.