I have an old direct vent natural gas fireplace that will not light. It does not have a pilot light, so it is a direct ignition . When I turn on the wall switch nothing happens, no clicking as in the past (when it worked) I could hear the gas valve click I assume , now nothing. I had a repairman check it out and I was told the ignition solenoid was bad and probably could not get a replacement due to the company that made them were no longer in business. I took the logs off the grate and observed what was happening. No spark to the ignition probes, when I turn the wall switch off , there is a faint spark . Does anyone know if I can replace the complete logs assembly with a vented log set?