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Laars Ld Heater - Is It The Ignition Control Problem?

Name: Albert  City:

Question: > Model: LD400N Any difference between #R0317500 and R0325200. Before buying the part, need Technical assistance with history: Two year old - intermittent problem seldom light off; however the ignitor did heat up (red glow), most of the time gas valve would not click. Did troubleshooting - whenever it did not ignite, there is no 24 VAC at the controls, thus gas valve would not turn on. Used to be that the thermostat has problem as in no clicking on the ignitor; now the thermostat seems OK. > > Sincerely, > Albert