Question about Teledyne Laars Laars Lite 2 Pool Heater 325,000 Btu / Natural Gas

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Pool heater comes on for about 15 seconds and then kicks off. A minute later it will do the same thing. Already replace hot surface ignitor probably because of over use. What ca the problem be?

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I run into similar problem. Generally means filter is dirty. Run filter on RINSE or BACKWASH for a few seconds then try again. I am sure this is the cause.

Posted on Jul 26, 2010

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The ignitor is simple to replace, It is either a spark ignitor or a Hot surface ignitor. The above link will take you to a picture of the Hot surface ignitor, it is normal held onto the bottom of the burner tray, at right about the middle, by 1 or 2 sheet metal screws.

If a Spark style ignitor/electrode, then the bottom link is the one want to look at. Again, held in place the same way as above description.

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We have a laars lite 2, when we openned the pool


Thank you for posting your question here on Fixya.com.

It could be...does it open up at the point the heater shuts down? Check it with a DMM to see. It is more likely an issue with flame recognition off the pilot/ignitor. Check them for rust that would cause a faulty connection.

If this answer does not fix your problem, please comment with additional details prior to rating the answer. Positive feedback is appreciated once your problem is solved!

John

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Module replaced, 2 uses later ignitor burned out, replaced ignitor, module burned out ...to the tune of 400.00, 3 service calls and are now looking at 200.00 more...now what?


If I understand your situation, you have already replaced the Module once, then the Igniter went out, so you replaced that, and now the Module is not working again. If this is correct, I would call the servicer and have them come out and see what they did wrong, Modules do not go bad in just a couple of uses.

I am not sure if you have any error codes, or know about the diagnostic lights on the back of the Digital Display panel, but I would first try and reset the heater. To do this you will need to turn OFF the heater by opening the right hand side door and turning the POWER toggle switch to OFF. Then find the circuit breaker that goes with the heater and flip that off. Wait between 15 and 20 minutes, then reverse the order. Circuit breaker on, heater on, then try and start the heater.

Watch for any error codes, like EO5, the heaters computer will flash a series of start up "codes" like 888, do not worry about those. If the display comes up, check the water temp that it is reading compared to what the water temp is actually. If different, the problem could be the Thermister and not the Module.

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Let me know what you find. If it doesn't glow you probably have a faulty Hot surface ignitor.
If I had make and model number I should be able to find the part

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