I have a Charmglow 300TQ unvented gas fireplace. It worked beautifully until I had the 100 lb bottled gas tank refilled three days ago. I am now having two problems, which I imagine are related: 1) The pilot burns just fine but the flame won't come on by itself when the room temperature drops. This has never been an issue before. 2) I have to turn the flame on manually. It stays lit for 5 to 10 minutes and then the entire heater--both the flame and the pilot--shuts down. It lights again immediately and again, the pilot will stay on but the flame doesn't come on automatically.
I take the fake logs out and clean the pilot assembly (including the nozzle the gas emerges from) every time I refill the tank.
I've done all the troubleshooting steps I can do without a multimeter, but I'm ordering one today so that I can do those steps, too.
One note: If the pilot assembly needs replacing, I'm going to have to do it myself. I'm ... let's say financially challenged right now. I can't afford labor to have someone come in. Is this something I'll be able to do myself or am I up the proverbial creek? Anybody have a rough idea of the cost of a pilot assembly? I've looked online but I can't seem to find my model Charmglow anywhere. I suspect it's pretty old since it was here when I bought the house four years ago and the guy who sold me the place didn't leave anything new behind.
I'd be grateful for any input anyone has.