I have an older Laars Lite 2 pool heater, and I need to replace the pilot generator - I only get about 120 millivolts output. Looking at the heater I can not see a how to remove and replace the generator without sliding out the whole burner assembly. Problem is my gas line does not have a coupling in the heater. So, I would need to remove the pipe at the value body. I'm hoping I'm missing something and there is an easier way to replace the generator. Any advice or direction would be greatly appreciated?