Jandy Logo

Jandy Recent Questions, Troubleshooting Help & Support

Do you work here? Claim your company

  • 273 Products
  • 2K Answers
  • 196K Views
0helpful
2answers

Jandy Legacy Heater 400,000 BTU LP Electric Ignition LRZ400EP pool heater. It reads open water sensor.

replace water sensor that goes from board to header
3/5/2026 8:11:40 PM • Jandy Pool & Spa • Answered on Mar 05, 2026
0helpful
1answer

Jandy RS4 goes into service mode automatically despite program setting for pool pump. This has happened a couple times over the last few months. not sure why this is happening or how to fix it.

Question moved from Misc category to make model. Try a full power reset. Disconnect the power to everything pool related and wait 30 minutes before reconnecting. There are other ideas and videos in the link. https://www.google.com/search?q=Jandy+RS4+goes+into+service+mode+automatically ..
3/6/2025 6:45:25 PM • Jandy Aqualink... • Answered on Mar 06, 2025
0helpful
1answer

Hello do you have the Jandy K11011 pool level

do you have a different part # ? that isn't coming up as a valid part number. Rod Kidman Apex Whirlpool Bath & Spa, LLC "A Professional Service Firm" 800-918-9143 Ph 801-666-2098 Fx 'The only hard day was yesterday'
10/8/2024 8:10:42 PM • Jandy Pool & Spa • Answered on Oct 08, 2024
0helpful
1answer

Jandy Pro Series LXi Pool and Spa Heater. Fault Fuse Link / Field

Question edited for clarity, add the '(what it is)'. Question moved from Laundry Dryers. The Exploded Parts Diagram is the place to look for this. They are normally silver buttons with two wires of a small rectangular block. https://www.google.com/search?q=jandy+pro+series+lxi+parts+diagram ..
8/25/2024 1:52:26 AM • Jandy Laars LX... • Answered on Aug 25, 2024
0helpful
1answer

Jandy LXi Gas-Fired Pool and Spa Heater. I have no power to my user interface control panel, but power going into the unit Jandy lxi 400N.

Question edited for clarity full 'make model (what it is)' Question moved from Washing Machines category. Open it up and see if rodents have eaten the wiring over the winter. Check for internal fuses on board and display. JustAnswer.com in the link says replace the Display. https://www.google.com/search?q=Jandy+lxi+400N+no+power+to+control+panel ..
5/8/2024 5:30:00 PM • Jandy Pool & Spa • Answered on May 08, 2024
0helpful
1answer

Jandy Pro Series JX1 Spa Ga Heater. Universal Controller Error: UI FW Rev: 1.8. It is just 3 years old. Only used during the summer.

Question edited for clarity. According to a JustAnswer dot com customer, this was the answer. The source of the problem was a loose wire between the control display and the controller in the heater. It had absolutely nothing to do with the input power (as suggested by JA Tech). https://www.google.com/search?q=Universal+Controller+Error+UI+FW+Rev%3A+1.8 ..
4/26/2024 11:13:14 PM • Jandy Pool & Spa • Answered on Apr 26, 2024
0helpful
1answer
0helpful
2answers

I have a Jandy JXi reading fault fuse link field what do I need to do

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.
3/11/2023 2:21:48 AM • Jandy Pool & Spa • Answered on Mar 11, 2023
0helpful
1answer

Jandy AquaLink RS - no power

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.
2/25/2023 4:57:52 PM • Jandy Pool & Spa • Answered on Feb 25, 2023
0helpful
2answers

How to i fix this problem. 'air sensor shorted' on a Jandy LRZ

  1. Check the air sensor: The first step is to locate the air sensor and check for any visible issues. Make sure it is properly connected and not damaged.
  2. Check the wiring: If the air sensor appears to be in good condition, the problem may be with the wiring. Check the wiring for any loose connections or damaged wires. If you find any issues, you may need to repair or replace the wiring.
  3. Check the control board: The control board is responsible for managing the various functions of the pool heater. If the control board is malfunctioning, it can cause the air sensor to short out. You can check the control board by testing it with a multimeter. If you suspect the control board is the problem, you may need to replace it.
  4. Check the air intake: If the air intake is blocked or restricted, it can cause the air sensor to short out. Make sure the air intake is clear and unobstructed.
1/6/2023 2:50:53 AM • Jandy Pool & Spa • Answered on Jan 06, 2023
0helpful
1answer

Turn back light on on my Jandy Remote

go into system set up and turn on on remote
11/29/2022 5:51:21 AM • Jandy Pool & Spa • Answered on Nov 29, 2022
0helpful
2answers

Spa drains when turned on

The problem is in your plumbing. Someone put a valve in an incorrect position. I would have to see a picture of your plumbing but if you can follow the flow of water. When you put it in spa mode, look at which valves turn and which ports open up. If it is doing anything other then sucking water from the spa and returning it only to the spa, then that is why it is draining. Again it would be great if you had a picture. What I have seen before is somebody plumbing in the pipe for a pool cleaner after the valve that send water to the spa. This would result in water from the spa slowly draining out of the pool sweep line. Good luck.

9/25/2022 4:55:30 AM • Jandy Aqualink -... • Answered on Sep 25, 2022
0helpful
1answer

Aqualink RS Heater Button is not turning on

see if hooked up with 4 wire from heater to aqualink if so try checking wires for one loose or off if ok try to use the firemans swith to pins 1 and 2 then heater button will work
8/6/2022 4:11:25 AM • Jandy Pool & Spa • Answered on Aug 06, 2022
0helpful
3answers

Spa empties into pool when pool filter is on

That is because the return line to the spa and pool are on. This is expected behavior. This is to keep water circulating.
7/16/2022 4:36:58 AM • Jandy Aqualink... • Answered on Jul 16, 2022
0helpful
2answers

My Jandy autofill system malfunctioned

this can be a sensor (wiring) problem. It is imperative that the sensor wire is not damaged or corroded at the terminals. Unfortunately with this system, it fails on instead of off. check all the wiring for the sensor and replace if necessary. Check for continuity all the way from the circuit board terminals to the sensor itself to be sure.
6/3/2022 5:11:17 AM • Jandy Levolor... • Answered on Jun 03, 2022
0helpful
3answers

Whistling noise after 5 minutes of heating. Heater is less than 3 months old! What can be the cause?? New gas line, 1.5" as recommended.

I had the same problem. It was the gas valve whistling. try closing the gas shut off to the unit just slightly until the whistling stops. The heater should remain lit and functioning.
4/18/2022 4:10:27 AM • Jandy LXI400N... • Answered on Apr 18, 2022
0helpful
1answer

Air Flow Fault on Jandy LXI

check the air switch hose make sure not pinched or hole in it then if ok make sure fan running correct speed
4/18/2022 3:45:13 AM • Jandy Pool & Spa • Answered on Apr 18, 2022
0helpful
1answer

My Jandy lite 2 natural gas heater has a loud clicking noise. It fires up and heats my pool nicely. My problem is.... as it is heating there is a loud clicking noise from the gas valve area. It acts a

I would suspect that it is not the valve making the noise. I would bet it is the thermal expansion of the metal that you are hearing. Other than that, I have seen cases where there is a flow control valve, and depending on its operation, when it opens or closes on spring power it will over shoot and make a loud clicking noise as the clutch overshoots. This will usually only be about 2-4 clicks though, and around pool equipment I doubt you would hear much of it. I would bet more on the thermal expansion. Kind of like the clicking noise you will hear after you have parked your car and the engine is cooling down.
8/14/2021 10:10:23 PM • Jandy Laars Lite... • Answered on Aug 14, 2021
0helpful
1answer

I cannot figure out in the RS6 menu how to delete

The best thing you can do is to clear the memory for the system this should be done once in awhile it is like rebooting your computer.

Here are the steps;
1. Press the menu button
2. Now press < button till System Setup is displayed
3. Press enter
4. Press < till "Clear Memory" is displayed
5. Press Enter
6. Press Enter
You will get a message saying " System Memory is being Cleared"
Once it is done the display will go back to scrolling mode

Now reprogram the system as you normally would

You should do this "rebooting" once a year it will make the system run alot better.
Aqualink systems can get a issue called "Ghosting" which is equipment will get programed to run all on it's own. We see it alot in the bigger systems (RS8 and up) for some reason. We are a Jandy warranty center have been for 10 years now.
Hope this helps

6/10/2021 8:51:53 PM • Jandy AQUALINK... • Answered on Jun 10, 2021
Not finding what you are looking for?

Ask a Question

Usually answered in minutes!

Top Jandy Experts

john h

Level 3 Expert

29497 Answers

vince

Level 3 Expert

2544 Answers

Paul Carew

Level 3 Expert

3966 Answers

Are you a Jandy Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...