Raypak 266a propane: black smoke

RDspaguy

In The Industry
Mar 21, 2020
712
Cabool, Mo
The burners should face up. It's hard to tell in your video, at least with my old eyes. Are they in upside down? Never ran into that before, but it would be a problem.
It looks like there is a bit of roll-out. This is almost always a venting problem, when your burners are facing the right way. Is it very windy there? Could there be an obstruction in the top vent? Did you have it apart when you powerwashed?
 

70runner

Active member
Jun 27, 2015
39
Fallbrook CA
This is interesting. I replaced the burners the same way they came apart, with the holes facing down. Seemed odd to me at the time. I take it the burner holes should be facing up - toward the exchanger.

I had everything except the exchanger removed for the powerwashing. Next time I'll remove that and do it away from the pad...makes a sooty mess. Just an afternoon sea breeze, maybe 10-15mph. No obstructions.
 

JamesW

TFP Expert
Mar 2, 2011
19,464
The gas comes out of the top of the burners, not the bottom. It's highly unlikely that they came like that.
 

70runner

Active member
Jun 27, 2015
39
Fallbrook CA
I know what you guys are thinking, how could someone be this dumb? Never having done one of these before, I take lotsa pix....and have the before and after pix. Left is just after removal of burner tray, note soot and bent burners. Right is cleaned up, straightened and, yea, following DIY rule to put back the same way it came apart. Though I pondered the burner holes facing down, but brushed it off as some mystical pool heater physics ? ? ?
before.jpgafter.jpg
 
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JamesW

TFP Expert
Mar 2, 2011
19,464
Can you show both pictures with a wider shot?

It's very unlikely that the burners would have come upside down.
 

RDspaguy

In The Industry
Mar 21, 2020
712
Cabool, Mo
You are right. Not upside-down, why all the fire underneath? No vent blockage, why the rollout? Why all the soot? Are we sure they are the right orifices?
 

JamesW

TFP Expert
Mar 2, 2011
19,464
The first picture is when the burner tray was removed.

The second is after being worked on.

I suspect that the burners were inverted.
 

RDspaguy

In The Industry
Mar 21, 2020
712
Cabool, Mo
I see. My eyes are as old as the rest of me, and even 2 corrective lenses (bifocals) arent enough anymore.
Those burners ARE in upside-down. What I thought were the perforations are the shadows of the wavy edge. It sucks to get old.
 

70runner

Active member
Jun 27, 2015
39
Fallbrook CA
Flipped the burners to holes up and heater working like a champ, spa temp from 66 to 84 in about 15min. Absolutely no smoke. I guess that's why we didn't use it much, it just never worked right. It was installed as part of escrow, old heater was toast. Lesson learned, don't ALWAYS put stuff back the way it came apart.

Thx again for you guys helping me through this.
 
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