Abstract: Based on MFOP reliability index for gas water heater computer board has carried on the simulation and experimental research of reliability design, through to the water heater burning gas computer board can be based on MFOP reliability index for gas water heater computer board has carried on the simulation and experimental research of reliability design, through the investigation about the present situation of water heater burning gas computer board reliability index analysis, formulate the MFOP reliability experimental study scheme for computer board of gas water heater. Based on the reliability experimental study, different acceleration experimental models were selected for different reliability acceleration experiments, and various acceleration test data under different stresses were obtained. Weibull distribution was used to fit the life distribution under various stresses, and distribution parameters were determined, and relevant parameters were fitted according to the acceleration model. Finally, the multi-failure mode life assessment based on competitive failure model is realized, which provides theoretical guidance for the reliability design of computer board of gas water heater.

Key words: Gas water heater, Control module, Reliability, Experimental model study