Unfortunately I do not have the manual for this unit.. When I this box out on my desk, I noticed bug parts falling out of it. I kept tapping it on the desk and at least 6 dead lady bugs fell out if it. There are open hole where they can get into it.
I reinstalled the unit and it fired up every time. It fired up 10 times in a row yesterday.. I tried it again this morning, it did not lite the first time, but did every time after.
When it does not lite, you don't hear anything. When it does, you hear 4-6 spark attempts then it fires right up.
I do not suspect the gas valve at this point. When its lit, it is burning fine. Good flame and all.
This unit was built in 1992. What is the likelihood this box is on its way out? I have found replacement modules online for $120. In my local RV stores they are around $200.