Question about Pool & Spa
My pool heater started fine at the beginning of the season, then an error code FL 4 appeared on the LCD. Upon closer inspection it seemed about 50% of the metal of the ignitor was burned. I replaced the ignitor, and still the same error code. So I decided to replace the high voltage control board that the ignitor plugs into. STILL I get the FL 4 error code. Everything else appears to be operating fine, except that the ignitor does not glow. I get no voltage out of the ignitor terminals. Any help is diagnosing this is appreciated.
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Posted on Jan 02, 2017
I believe you may have a draft restriction and this may stop the start up diagnostics. The draft detection switch is sometimes restricted or weak. Common problem. Tap the gas valve to see if the winter has caused the valve to seat heavily and stick.
Posted on Apr 25, 2010
If all voltage test points are within range, then it's 1 of 3 problems: Power Conversion Plug is faulty; Power Control Board is faulty; or Controller is faulty. Jandy says there is no way to test any of these directly. They recommend that you replace both the Power Conversion Plug (~$35) and the Power Control Board (~$230). Apparently when one fails, it can cause the other to fail as well. They said that unless the Controller has a lot of corrosion on it, then it probably is not the issue.
Posted on May 20, 2010
most likely problem is incorrect gas pressure or a clog in the gas line. If this is a propane heater (you did not specify) then the owners manual is wrong on the gas pressure, you should call the manufacture to get the correct settings for propane.
Either way you need an experienced gas person to come set the gas properly.
Also I had serious problems until I had the gas company install a regulator right next to the heater (so the entire under ground gas line was high pressure). I use to have a regulator next to my house so low pressure fed all the way from my house to the heater (200ft) and this caused serious problems like this.
I also had a regulator break on me one year. It basically stopped putting out the right pressure.
Lastly the flame sensor could simply be bad. If you are still having this problem I can explain how to remove and test the flame sensor. It is easy to test and easy to replace.
Posted on Sep 20, 2010
Can a model LJ250P Propane 2005 model be installed indoors . The rating plate says it can. But manual says it cannot. What the hell????
Posted on Jun 14, 2011
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