20 Most Recent Jandy LAARS LX250 - PROPANE, DIGITAL READ-OUT, LOW NOX Questions & Answers

check to see if hose is kinked or rotten

Replace the blower vac switch, check tubing to make sure there are np cracks

Some have a electric heat element, while some others have a "Exchanger" system utilizing the heat from the pumps motor to transfer that heat to the water. Pump will be on a lot!

I think you said that you are getting a pressure switch error. The first thing to check is that the filter is within the right pressure. If too high or low you will get a pressure switch error. That error could mean a few different things so I will give you a few other solutions. If you have an automation unit make sure that the heater is turned on at the automation unit and that the water temperature is displayed correctly. If that checks out take the front off the heater and slide the front panel down. You should see a small fuse assembly on a red wire in the upper right corner. Open it and make sure the fuse is good. follow the red wire to the pressure switch. You can remove the connection and use a small piece of wire to jump the connection and see if the heater fires. If it does replace your pressure switch. I believe the next spot is a terminal bar to the far left. There should be either a small jumper wire in the top two connections or wiring for your automation unit. If its not a jumper you can remove the two wires and place a jumper and see if the heater fires. If so the problem is with the automation. Good Luck
Santa Clarita Pool Heater Repair

Once you get to the manual search it for "FL 2". There is a trouble-shooting chart near the back of the manual that addresses FL 2 issues.

nop that is the only way but why is leaking are u install tablets on the skimmer?

Most likely the brushes inside the blower motor are worn.

that means you need to replace the high limit assembly

The fuse link is a device that will open when over heated. If the exhaust temp is to high it will open and is a one time device. It can not be reset it must be replaced with a high temp fuse link made for the exhaust location. It will have a red mark on it indicating high temp. Low gas pressure can cause a lean fuel condition that may cause the exhaust temp to rise enough to trip the link. I would also check for scale inside the heat exchanger. Scale inside the heat exchanger will not allow for proper heat transfer to the water, this will cause excess heat to be present in the exhaust. Proper water balance and flow are very important.

If you have checked the circuit breakers and they appear to be functioning properly, here are a few other things you can try:

1. Check the GFCI outlet: If the AquaLink RS is plugged into a GFCI (ground fault circuit interrupter) outlet, make sure the outlet hasn't tripped. You can do this by pressing the "reset" button on the outlet.
2. Check the transformer: The AquaLink RS requires 24 volts AC power to operate. If the transformer that converts your home's AC power to the 24 volts required by the AquaLink RS is faulty, it can cause the system to fail. Use a multimeter to test the transformer to ensure it's supplying the proper voltage.
3. Check the power supply: If the transformer is supplying the proper voltage but the AquaLink RS is still not receiving power, the power supply board may be faulty. Check the power supply board for any obvious signs of damage, such as bulging or leaking capacitors.
4. Check the wiring: It's possible that a wire has become loose or disconnected, preventing the AquaLink RS from receiving power. Check all of the wiring connections to make sure they're secure and tight.

If you're still unable to get power to the AquaLink RS, it may be time to call a professional pool technician to diagnose and repair the issue.