Superior model DS-41TN- limit switch is open- where is it?
This unit is in a restaurant. The unit won't fire till I bypass the 2 wires that go up the left side of the unit. Must be a limit switch somewhere that is open. I was hoping to look at a diagram of the unit so I knew how to get to it. Also, I can feel hot air on the left side beside the glass. Does this mean the glass gasket is shot?- No, I did not leave anything bypassed. Looked at the Lennox site, I can't find the model number I'm looking for because they seem to be called names instead of models. Might be tough getting any parts if this unit is obsolete. Any info would be helpful.
After further investigation- Problem solved!
Sometimes with these kinds of problems I'm hesitant to just start tearing things apart for fear of something falling apart or whatever. And then not having any info on the unit,trying to figure how to get it back together.
I went back to this unit and on the reverse side of the model plate was the wiring diagram and the problem was the door switch. I located the door switch and then noticed because of the heat I had felt coming out beside the glass when I had bypassed that switch temporarily the glass door was not on right. I removed the two spring loaded screws from both sides at the top and removed the glass/frame. There are pins at the bottom of the glass/frame that were not seated in the slots so there was a gap. Once I reinstalled the glass/frame starting at the bottom and then reinstalled the screws at the top, there was no more leakage and the door switch was closed and everything worked. As a side note there was an awful lot of turbulence while the glass/frame was not installed right and as soon as the gap was sealed everything calmed down, including the pilot. I suspect someone removed the glass to clean it and never reinstalled it correctly.