Question about Jandy Laars Lite2 Lg 250,000 Btu Heater
My heat exchanger cracked over the winter. Is there a drainage procedure that I didnt follow. My service provider tells me it is my fault and not under warranty. I he unit is two years old . Each fall I drain the filter and the pump but i have never drained the water from the heat exchanger before and now this happes..UGGG
Yes I just had the same problem, the guy that I bought the house from told me to drain the pump and the filter,etc. But failed to mention there is three brass plugs on the side of the unit, so the heat exchanger cracked, but i took it to a general welding shop and they welded the crack up so that saved me a bunch of money That is all you have to do
Posted on May 22, 2009
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Posted on Jan 02, 2017
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Thank you for posting your question here on Fixya.com.
There are only two things that can cause a heater to run yet doesn't adequately heat the water. One is a clogged up and sooted over heat exchanger. It seems odd you do not mention periodic cycling of the heater too as usually you get heat roll-out from the bottom of the heater when this condition is present and that will trip a heat sensor from time to time.
Opening the top of the heater to expose the heat exchanger tubing will confirm this. If it is all tarred over it needs to be removed and steam cleaned and/or power washed to remove all the soot; once cleaned the heat can then be transferred thru the exchanger into the water.
The other possibility is poor gas flow either due to poor gas pressure or clogged up orifices, manifold or burner tubes. With the heater running inspect the flames from below. If they are bright blue and 2 - 4 inches tall on all the burners you heater is running fine. If not, you need to resolve the gas flow issue.
If this answer does not fix your problem, please comment with additional details prior to rating the answer. You may also contact me thru our website at www.arrowpools.net. Positive feedback is appreciated once your problem is solved!
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