Installed the new control board, furnace operating normally. I still don't think the air temp is terribly warm, but I think I'll wait till spring before fiddling with it any more. The trailer heats, and that's good news. I do have a really dumb question, though. There are two removable panels, one s...

In this thread https://www.mobilehomerepair.com/phpbb/viewtopic.php?f=1&t=7908 , some discussion was made regarding orifice size. Rather than continue to hijack that thread, I thought I'd ask this question here... How will elevation affect the performance, relative to the orifice size? In the Ga...

What size is the orifice currently installed? I've been looking at the same model furnace, supposedly set up for propane, but verification of the actual size of the orifice could be useful. I'm not in a position to check right now, but I think the propane orifice was stamped 082. There is a natural ...

Resistor r36 was corroded completely through one end; just enough contact was being made through the corrosion to allow intermittent operation. After cleaning off the corrosion, of course, the furnace won't operate at all :roll: Removed the gas valve and looked for any blockages, found nothing. Remo...

After pulling the cover plate off to check voltages, I found corrosion at a couple points on the board: across resistors r28, r36, and r13, and also at the other side of the board surrounding the resistor to the left of r12. The furnace was actually running for quite a while until I touched the corr...

My mother finally told me her furnace (from 1995) has been acting up for a few weeks, and she had bought a new thermostat. I drove down to put it in for her, which was a simple job, but the furnace is still squirrelly. It will only light if the power is shut off at the main fusebox for a few minutes...