Patent ID: 7409301

Claim:
In a system comprising a level sensor assembly, a computer having a memory and a boiler water level control system controller having historical boiler water level control system information, the controller in communication with the level sensor assembly and the computer, the computer programmed with a program to be stored in the memory for execution by the computer, and a float that is in operational association with the level sensor assembly, a method comprising: providing, upon execution of the program, computerized access to the historical boiler water level control system information from the boiler water level control system controller; and utilizing the historical boiler water level control system information in at least one of testing, over a specified amount of time, and diagnosing at least one boiler water level control system functionality; wherein the at least one boiler water level control system functionality includes a float check that includes monitoring the float to ensure that any movement of the float is sufficient for and within the specified period of time; and wherein the float check is in operable association with a burner, such that the float check is activated upon detecting voltage on a burner status input terminal of the burner.