SOURCE: what type of pipe is needed on the inflow of the teledyne laars?
Most pool stores carry a set of two pipes used for older heaters. They are about 17" long, stainless steel, and bend 90 degrees about 8" from one end. They are usually refered to as heat sinks. The fact that the old one has pin holes in it would lead me to believe using PVC would be a bad idea.
SOURCE: laars lite 2, mod-lg125n, sn. d03pj3400.
sounds like heat exch is plugged.remove top of unit and inspect for nests.could also be plugged with soot because of poor burner flame characteristics.with top off,turn htr on and look straight down into unit. you should be able to clearly see burner flames between fins. if not remove exchanger and clean
SOURCE: I have a Laars Lite 2 400,000 btu pool heater. It
It could be that the Igniter has gone bad. Or it cold be a number of other items, like the gas valve itself. If the heater has a display panel on it, is there an error code showing? If there is, go to your Owner's Manual and find out what the code is for the heater.
If you do not have a manual, you can find one online at the following link:
http://www.inyopools.com/owners_manual/jandy_heaters_lite2.pdf
SOURCE: Laars Lite spa heater leaking at header after reconnected plumbin
Old laars heaters had only 1.5' Flanges. Newer ones had 2" and 1.5" the difference being the inside hole. so you can get 1.5" gaskets 2' by 1.5" gaskets and 2" gaskets. If you have stanless steel heat sinks wich I think you may have you need to match the right gasket to the pipe size. The gaskets should slide over the pipe easly and snug firmly when you tighten them. Then be sure you tighten each one eavanly. The obstructing tab is there to keep 1.5" sinks from going in to far and interfearing with the by-pass assembly.I hope this helps, I know what I'm talking about and it sounds confuseing to me.If you measure the hole in the flange and the size of the pipe and get gaskets that size you should be fine. Good luck.
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