We had lightning strike near our house. Later, we found that in main electric service panel, two circuit breakers were tripped. In addition, we have had to replace circuit board in furnace. Now, we find that the gas range will not work properly. The following functions will not work: top of range (4 of 5 burners; no spark); only 1 of the 5 top burners will spark to ignite the gas. In addition, bake, broil and convection functions do not work (again, no spark). As far as we can determine, all functions on the LCD control or display panel are working. Do you have suggestions for diagnosis and repair?