I have a Heat n Glo 6000 TRXl with a intensifire switch. I bought the house last year and the fire place worked great all winter. Didn't really use the intensifire though but I did try it a couple of times and it fired right up, you could hear the solenoid click and the flame in the back came on, no problem. This year the fireplace lit off great but no click for the intensifire. It has new 9 volt battery. I checked and there is voltage going to the solenoid and the coil reads about 6 ohms on the fluke. Any body have any ideas? How hard is the valve and solenoid to replace? thanks.