Question about Jandy Legacy 175K BTU Natural Gas Pool Heater LRZ175EN
I have replaced everything including gas valve but for some reason it lights up will run for a short time then go out and some times the flames will come outside the belly of the furnace
Posted by Anonymous on
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Posted on Jan 02, 2017
The most likely cause is a defective limit switch on the header. There are two limit switches, a "high limit" and a "low limit". They are mounted in wells next to brass plugs in the thermoplastic header just below where the water outlet is. They have shiny metal covers over them and you can see the wires going into the wells just below each cover. With time and use the brass plugs begin to seep pool water, corroding the sensors. If the sensors are open circuited the ignition controller will not allow the hot surface ignitor to fire the gas. Even though this is a failure of the limit switch it will show up on the diagnostic panel as "AGS" (automatic gas shutdown) because it is not a temperature limit problem but an "ignition problem."
Posted on May 18, 2009
I had a problem simmular to yours When I changed my remote I had to also change my antena. Also make sure youd dip switch settings are set the same. between the antena & remote. The only reset that I know of is in the remot. Go to Menu then System Set UP. Then clear Memory. You Will loose all programs like, Dimming relays temp settings times for off & on. etc. I think if you have a intella flo motor you will have to reset it also.
Posted on Oct 05, 2009
Pull the cover off the control panel. You will probably find a button which would be accessible from outside the panel with a paper clip or pencil but is unlabeled. On the board itself by the button, in small letters it should say "reset". Push the button and see what happens.
Posted on Oct 09, 2009
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