Jandy pro series pool heater troubleshooting

The Hi-E2 sets the standard for pool heaters with a proven in-use record of over 20 years providing ultra-efficient heating with up to a 95% efficiency rating — which cuts operating costs by 15% or more*. Featuring a compact design, the Hi-E2 weighs in at 34% lighter than comparable heaters and with a 33% smaller footprint.

Jandy pro series pool heater troubleshooting. HEATER SOLAR POOL MODE SPA MODE SPA DRAIN SPA FILL SPARE ON 4 3 2 1 GREEN YELLOW BLACK RED Connection to Controls Connection to Jandy Control - RS 485 JXi CONNECTED TO AQUALINK RS AT RS 485 LINE There are two ways of connecting a Jandy JXi heater to the AquaLink RS. One way is to connect at the Pool …

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Jandy Pro Series JXi Pool Heater Product Instructions, please click here. ... Jandy Pro Series JXi Pool Heater Troubleshooting Guide ... Jandy Pro Series, JXi ® Zodiac Pool Systems, Inc. strongly recommends that you call a qualified service technician to perform all service and repairs on the heater. To locate a licensed or qualified technician service …Removed the cover and set it aside with power disconnected at the breaker. Carefully check to be sure no wires came loose and reconnect if they did. Reset breaker and allow the RS 12 to power up. Start the heater at it's control panel.Aug 23, 2022. #2. alwhea78 said: I have a Jandy Jxi 400n heater that is ~4 years old. I have had issues with a high limit fault since the end of last season. At the start of this season, we changed the limits and checked all of the flow and vents to confirm no obstructions. It seemed to work ok for awhile and then the fault started again.Jandy JXi 260 Installation And Operation Manual (48 pages) Pro Series JXi Gas-Fired Pool and Spa Heater. Brand: Jandy | Category: Swimming Pool Heater | Size: 6.12 MB. Table of Contents. Table of Contents. 2. Jandy HI-E2 Heaters. With an impressive 95% heating efficiency rating, the Hi-E2 outperforms any other gas heater, reducing operating costs by 30% or more. This ultra-efficient, low-maintenance heater is the perfect choice when considering economic operation or an extended swimming season. Dual thermostat controls make this an …If your pilot light is not burning, check that gas flow is on at the meter and at the heater. If you smell gas, proceed cautiously, and spray the pilot tubing with soapy water to rule out leaks at the connections or corroded pilot tubing. Another cause of the pilot not lighting is (2) air in the gas line. If a new pilot was installed, or this ...Jandy JXi 260 Installation And Operation Manual (48 pages) Pro Series JXi Gas-Fired Pool and Spa Heater. Brand: Jandy | Category: Swimming Pool Heater | Size: 6.12 MB. Table of Contents. Table of Contents. 2.

Jandy Hi-E2 EHe Installation And Operation Manual. nel, qualified in pool/spa heater installation. Improper installation and/or operation can. damage, or death. For indoor installations, as an additional measure of safety, Jandy Pool. the vicinity of this appliance and in any adjacent occupied spaces.Page 4 EGLISH Jandy Pro Series, JXi® ™ Gas-Fired Pool & Spa Heater | Installation & Operation Manual 4. Set the pump time clock to start the pump no earlier than 6:00 AM during the pool heating season. This is the time when nightly heat loss balances. 5. If the pool is only going to be used on weekends,Hello, I have a Jandy JXI260N heater, that will not start. It has a Fault High Flue Temp message as soon as it boots. I have jumped out the flue temp sensor with a wire, thinking it will either be open or closed depending on the sensor temperature. It does not have a fusable link in the flue. It is part R0719400. 2 wires come out of it.Buy Jandy Pro Series JXi Pool Heater 400 Natural with VersaFlo Bypass JXi400NK from suggested websites. The JXi heater sets a new standard in pool and spa heating technology with its ultra-compact size, lightweight design, and installation flexibility. The high-efficiency, low-NOx JXi is available in four BTU sizes, 200K, 260K, 330K, 399K, and ...Jandy Pro Series Heater FAULT HIGH LIMIT. roth1197; Aug 29, 2023; Everything Else; 2. Replies 25 Views 339. Everything Else Sep 1, 2023. ... The reason is simple: TFPC (Trouble Free Pool Care) is a methodology, not a product that you must purchase. It is being practiced by thousands of pool owners just like you. We are a …Proven Durability. The Hi-E2 sets the standard for pool heaters with a proven in-use record of over 20 years providing ultra-efficient heating with up to a 95% efficiency rating — which cuts operating costs by 15% or more*. Featuring a compact design, the Hi-E2 weighs in at 34% lighter than comparable heaters and with a 33% smaller footprint. AquaCal Big Bopper, 460volt, 527,000 BTU. CODE: BB500GRDSBNA. [Call For Availability] Pool Heat Pump 140,000 BTU Model JE3000T by Jandy. JE Pro series is cost effective, energy efficient and transfers maximum heat to your pool.Blower Jandy Pro Series Installation Instructions. Pool and spa air blower (2 pages) Swimming Pool Filter Jandy Pro Series Quick Start Manual. Chlorine generating system (2 pages) Controller Jandy JVA 2444 Pro Series Installation And Operation Manual. (16 pages) Controller Jandy TruDose Installation And Operation Manual.

When it comes to enjoying your pool year-round, a properly sized pool heater is crucial. Choosing the right size heater ensures that your pool stays at the desired temperature, regardless of the weather conditions.Mar 5, 2023 · The pool equipment appears to be above the water level of the pool so no need to isolate the heater and worry about water from pool. A minimal amount of water will come out when you remove the cover. Then there is just one screw to loosen to install a new thermal regulator valve. View Commercial Products. Build the perfect swimming pool environment with Jandy professional-grade equipment; pool products including pumps, filters, heaters etc.ManualsLib has more than 655 Jandy manuals. Accessories. Models. Document Type. TruGuard. Owner's Manual • Installation And Operation Manual • Installation And Operation Manual • Owner's Manual. TruGuard Cartridge. Owner's Manual. Blower.

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Jandy LXi heater, Model 250, problem as follows: Ran with no problem day 1. Day 2, pool pump runing normal for 30 minuts with Gas Heater turned off. Turned on AC power to heater and listened to what s …Re: Jandy LXi heater has no power... I took the 240/24 vac transformer out today, and checked it. When I put 240 vac across the black and blue wires, there was a brief flash, and no 24 vac on the secondary leads. I am assuming, at this time, that there is a short on the 240 v size of the transformer, which caused the Power Distribution Board to ...Jandy Pro Series Legacy pool heater is built to last and loaded with technologically-advanced features. Legacy heaters are an economical pool heating solution. ... Description Jandy ® Pro Series Legacy™ Pool and Spa Heater Manual. File Size 6.89 MB | File Type PDF . Document ID H0322000. Description Jandy Legacy Heaters Vent Cap & Draft …Object moved to here. Jandy HI-E2 Heaters. With an impressive 95% heating efficiency rating, the Hi-E2 outperforms any other gas heater, reducing operating costs by 30% or more. This ultra-efficient, low-maintenance heater is the perfect choice when considering economic operation or an extended swimming season. Dual thermostat controls make this an …

I have a Jandy Legacy LRZ250EN pool heater. Upon inspection, it appears some liners in the combustion chamber have come loose and fallen on the burnwer assembly thus restricting air flow and possibly …Jandy PRO Series JXI400 Quick Reference Manual (43 pages) Gas-Fired Pool and Spa Heater. Brand: Jandy | Category: Swimming Pool Heater | Size: 9.41 MB. Table of Contents. Water Chemistry. 3. Model and Serial Number. 4. Combustible Surfaces.Below is a list of our more common pool heaters and links to their parts. Please select the heater to search for your part. We have your needed heater part. ... Jandy LXi Low Nox Gas Heater (2008–Present) Jandy Pro Series JE 1500 Heat Pump; Jandy Pro Series JE 2000, JE2500, JE3000 Heat Pump; Jandy XL-3 Oil Fired Heater;3. Sep 15, 2011. #1. I just read the about the color logic light not chaning color and to check for loose grounds. We have two Jandy LED lights and they are also stuck and won't sequence. I tried doing the "color splash" sequence for like five minutes (saw that on a previous post as a solution to a light going dark, not my same problem, but ...JXi ASME Pool and Spa Heater Downloads. Document ID H0574300. Description Jandy JXi Heater Installation and Operation Manual. File Size 23.83 MB. |. File Type PDF. Document ID 2103_SL. Description JXi ASME Pool & Spa Commercial Brochure. File Size 7.32 MB.Hi, I have a Jandy Pro Series pool heater, 1 year old and is having ign fault after a while. Outside is ~7C, the water is 30C. ... What are the possible problems or troubleshooting I can do? ... my JAndy pool heater has a code of Fault Check IGN Control. The burner gets lit and then shuts off.Reviewed Aug. 14, 2023. My Jandy pro series stopped working after 2 yrs & the warranty company came out & repaired the ignition coil but it kept blowing every couple of weeks. After 9 months they ...Using genuine Jandy factory replacement parts helps to ensure the ongoing quality and reliability of our products. Plus, the use of inauthentic parts voids all factory warranties. Inauthentic parts may appear to be suitable on the surface, but they often fall short of factory standards. Don't compromise on quality – insist on genuine Jandy parts!May 19, 2019 · I have a Jandy Pro Series pool heater, 1 year old and is Hi, I have a Jandy Pro Series pool heater, 1 year old and is having ign fault after a while. Outside is ~7C, the water is 30C.

How to fix it: Check that pool pump is receiving enough water. Ensure that your pool pump is sending water to the heat pump. For variable speed pool pumps, try putting the pump speed up a notch Check for any clogs or backups causing poor water circulation. The same is true if what you use is in your pool is the Raypak pool heater.

Jandy Pro Series Legacy pool heater is built to last and loaded with technologically-advanced features. Legacy heaters are an economical pool heating solution. ... Description Jandy ® Pro Series Legacy™ Pool and Spa Heater Manual. File Size 6.89 MB | File Type PDF . Document ID H0322000. Description Jandy Legacy Heaters Vent Cap & Draft …I have a Jandy Legacy LRZ250EN pool heater. Upon inspection, it appears some liners in the combustion chamber have come loose and fallen on the burnwer assembly thus restricting air flow and possibly …Clean the Filter. Your pool heater needs enough water pressure to run properly, usually at least 40 GPM. If your heater isn’t getting a steady stream of water, it could be due to a clogged filter or dirty pump basket. Clean your filter, skimmer, and pump baskets. Turn off your heater and pump before cleaning.Front board power supply either too low or too high. (Generates 173 - Low input voltage code if Level 2 code 188 is present) (Generates 170 code if 188 is not present) Contact a pool professional. 188. VAC input voltage is too low. (Generates 173 code if Level II code 187 is present) Contact a pool professional. 189.Page 4 EGLISH Jandy Pro Series, JXi® ™ Gas-Fired Pool & Spa Heater | Installation & Operation Manual 2. Carefully monitor the water temperature of your pool in the summertime. You can reduce heater usage due to warmer air temperatures. 3. Find the proper setting on the pool heater temperature control and use the Set Point Lockout Swimming Pool Heater Jandy u0007bu0007bLJ Installation And Operation Manual. Lite2 pool and spa heater (48 pages) Swimming Pool Heater Jandy LG125 Installation And Operation Manual. Lg series natural gas or lp gas pool and spa heater (40 pages) Swimming Pool Heater Jandy Lite 2 LG Installation And Operation Manual.Price: $276.43. I acknowledge this is a special order item. Yes, I acknowledge. In Stock. 47 Air Pressure Switch Item Number: R0456400. Details: Zodiac Brand Item Number R0456400. Used On Jandy Jxi Gas Heaters. Used On Jandy LXi™ Low NOx Gas Pool Spa Heaters. Featuring a water-resistant housing and non-slip grip, the AquaLink Wireless Remote allows you to control all pool/spa features and auxiliaries and has a large screen to clearly display status and functions. Perfect for late nights in the spa, lounging in the hammock or sunning pool side, the AquaLink Wireless Remote gives you the freedom to ...

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gocubs418. I have a Jandy JXI400 heater. Little over 4 years old. Flawless operation, never had an issue ever. However, tonight, it had one. I saw the spa hit 100 deg and got my suit on. Jumped in and noticed it dropped to 99... Then 98. Walked over to heater and it said "CHECK IGN STEPS".I have a Jandy JXI 400N and the blower isn't coming on any more. I don't think the blower is bad because I have replaced the blower with a new blower and I have the same symptom. I followed the troubleshooting guide and on step 12 for troubleshooting the blower I am a little confused. In particular, the step walks through checks on the power ...Object moved to here.Page 1: Operation Manual. INSTALLATION AND OPERATION MANUAL Jandy Pro Series JXi™ Gas-Fired Pool and Spa Heater Models 200, 260, 400 IF THESE INSTRUCTIONS ARE NOT FOLLOWED EXACTLY, A FIRE OR EXPLOSION MAY RESULT, CAUSING PROPERTY WARNING DAMAGE, PERSONAL INJURY, OR DEATH.How to fix it: Check that pool pump is receiving enough water. Ensure that your pool pump is sending water to the heat pump. For variable speed pool pumps, try putting the pump speed up a notch Check for any clogs or backups causing poor water circulation. The same is true if what you use is in your pool is the Raypak pool heater.Steps 3-9 - 26.5V. Step 10 - 26.4V (had to turn on heater starting w/ this step) Step 11 - 26.1V. Step 12 - Yes, blower is on. Step 13 - 25.0V. Step 14 - 26.3V. Step 15 - I do not know how to check if the igniter is glowing, so I assumed NO and proceeded w/ the boxed steps. Voltage between K and J was 0V.Buy AquaLink iQ90X Combo Kits Now w/ a Pool Pro Near You! ... Pool & Spa Heating; Pool & Spa Heating. Heaters; Heat Pumps; All Pool & Spa Heating; Pool & Spa Lighting; ... Jandy Pro Series "Next Gen Purelink" Purelink Power Center AP700/1400 #6612F Jandy Power Center Foundation 24VAC, Aqualink RS (up to 4 relays) ...Jandy JXi 400 Installation And Operation Manual (48 pages) Jandy Pro Series Gas-Fired Pool and Spa Heater. Brand: Jandy | Category: Heater | Size: 17.78 MB. Table of Contents. Operation Manual.operating the Jandy AquaLink® RS AquaPalm. The instructions must be followed exactly. Read through the instructions completely before operating the equipment. 2.1 Basic Functions The AquaPalm Handheld Remote can be used in addition to an already existing AquaLink RS control system. The AquaPalm can turn your pool/spa ….

To troubleshoot and repair an Atwood water heater, first identify the particular problems. Common issues with Atwood water heaters include pilot outages, insufficient hot water, electrode problems and gas burner ignition issues.If your heater is not connected to an automated system, turning it on and heating up your pool and spa can be confusing. Almost all heaters have a simple to ...Wired setup is required for early generation iAquaLink systems. Confirm that the internet connection switch on the iAquaLink is set to the wired position. Connect the ethernet cable into the ethernet port on the iAquaLink. Within 2 minutes, the yellow LED should stop blinking on the iAquaLink. When the green LED illuminates, the iAquaLink is ...Page 1: Operation Manual. INSTALLATION AND OPERATION MANUAL Jandy Pro Series JXi™ Gas-Fired Pool and Spa Heater Models 200, 260, 400 IF THESE INSTRUCTIONS ARE NOT FOLLOWED EXACTLY, A FIRE OR EXPLOSION MAY RESULT, CAUSING PROPERTY WARNING DAMAGE, PERSONAL INJURY, OR DEATH.Steps 3-9 - 26.5V. Step 10 - 26.4V (had to turn on heater starting w/ this step) Step 11 - 26.1V. Step 12 - Yes, blower is on. Step 13 - 25.0V. Step 14 - 26.3V. Step 15 - I do not know how to check if the igniter is glowing, so I assumed NO and proceeded w/ the boxed steps. Voltage between K and J was 0V.Installation Manual • Troubleshooting Manual • Installation Manual • Owner's Manual • Installation Manual • Troubleshooting Manual AquaLink RS6 Installation Manual • …Reviewed Aug. 14, 2023. My Jandy pro series stopped working after 2 yrs & the warranty company came out & repaired the ignition coil but it kept blowing every couple of weeks. After 9 months they ...Hi, I have a Jandy Pro Series pool heater, 1 year old and is having ign fault after a while. Outside is ~7C, the water is 30C. What could be wrong? Contractor's Assistant: Who manufactured the pool? I bought the house with the pool, the heater is Jandy Pro Series. Contractor's Assistant: Is your Jandy heater gas or electric? Gas …Swimming Pool Heater Jandy u0007bu0007bLJ Installation And Operation Manual. Lite2 pool and spa heater (48 pages) Swimming Pool Heater Jandy LG125 Installation And Operation Manual. Lg series natural gas or lp gas pool and spa heater (40 pages) Swimming Pool Heater Jandy Lite 2 LG Installation And Operation Manual. Jandy pro series pool heater troubleshooting, With two modes —Heat Mode and Bypass Mode — you can choose when water is directed through the heat exchanger. Pool heaters are typically used only 3.5% of the average annual pump runtime. The other 96.5% of the time, the heat exchanger can be bypassed so the pump works less — saving electrical energy and up to $350 a year., Equipment - Build, Use, and Repair. Everything Else . L. Lauren_p 0. Jul 1, 2018 7 Apopka, Fl. May 12, 2020; Add bookmark #1 Hi everyone, We have a Jandy Tru-clear system, and got a Fault High Limit message on our spa heater. I called our builder, who is sending out a tech. ... Jandy Pro-series pool and spa heater, model JX1260P, …, Apr 20, 2014 · With over 300,000 members, TFP is the largest and most influential pool & spa website on the Internet. The reason is simple: TFPC (Trouble Free Pool Care) is a methodology, not a product that you must purchase. It is being practiced by thousands of pool owners just like you. We are a registered 501(c)3 non-profit that is funded by user donations. , Shop The Pool Supplies Superstore. The Pool Supplies Superstore is your online source for discount pool supplies. We discount all the top name brands of pool supplies including Hayward, Pentair, Waterway, Dolphin, Kreepy Krauly, Sta-Rite, AquaBot, and more. Plus, customers enjoy FREE Shipping and Handling on EVERY ORDER of …, Corporate Aqua Products Blueriiot Grand Effects Jandy ... Fluidra Pro Academy (FPA) offers the pool industry’s most comprehensive equipment training. ... and on-line training modules covering a wide range of subjects from the most basic programming to the most advance heater troubleshooting. Study at your own pace on a variety of products and ..., 1. Clogged Pool Filter 2. Bad Flame Sensor 3. Defective Igniter 4. Reset The Jandy Pool Heater How Ro Reset The Jandy Pool Heater 5. Disabled Safety Switches …, Object moved to here., HEATER SOLAR POOL MODE SPA MODE SPA DRAIN SPA FILL SPARE ON 4 3 2 1 GREEN YELLOW BLACK RED Connection to Controls Connection to Jandy Control - RS 485 JXi CONNECTED TO AQUALINK RS AT RS 485 LINE There are two ways of connecting a Jandy JXi heater to the AquaLink RS. One way is to connect at the Pool …, WHAT TO DO IF YOU SMELL GAS • Immediately switch off main gas supply. • Do not try to light any appliance. • Do not touch any electrical switch; do not use any phone in your building. • Immediately call your gas supplier from a neighbor's phone. Follow the gas supplier's instructions., Object moved to here., When it comes to enjoying your pool year-round, a properly sized pool heater is crucial. Choosing the right size heater ensures that your pool stays at the desired temperature, regardless of the weather conditions., Feb 22, 2017 · Removed the cover and set it aside with power disconnected at the breaker. Carefully check to be sure no wires came loose and reconnect if they did. Reset breaker and allow the RS 12 to power up. Start the heater at it's control panel. , Pool & Spa Heating; Pool & Spa Heating. Heaters; Heat Pumps ... The large 2.5" x 3" dimension is designed to easily connect with the Jandy Pro Series 3HP Stealth Pump ..., Jandy JXI series gas pool heater - FAULT CHECK IGN STEPS explained in this Step-by-Step Instructional Video.Inspection Camera: https://amzn.to/3prttIRLet's M..., Reviewed Aug. 14, 2023. My Jandy pro series stopped working after 2 yrs & the warranty company came out & repaired the ignition coil but it kept blowing every couple of weeks. After 9 months they ..., SKU # EHE350NC The Hi-E2 sets the standard for pool heaters with a proven in-use record of over 20 years providing ultra-efficient heating with up to a 95% efficiency rating — which cuts operating costs by 15% or more*. Featuring a compact design, the Hi-E2 weighs in at 34% lighter than comparable heaters and with a 33% smaller footprint., How to fix it: Check that pool pump is receiving enough water. Ensure that your pool pump is sending water to the heat pump. For variable speed pool pumps, try putting the pump speed up a notch Check for any clogs or backups causing poor water circulation. The same is true if what you use is in your pool is the Raypak pool heater., Product Catalog. View our official product catalog online. Contact UsZodiac Pool Systems LLC 2882 Whiptail Loop # 100 Carlsbad, CA 92010Phone: (800) 822.7933 Fax: (800) 479.8324 [email protected]. Corporate., Shop The Pool Supplies Superstore. The Pool Supplies Superstore is your online source for discount pool supplies. We discount all the top name brands of pool supplies including Hayward, Pentair, Waterway, Dolphin, Kreepy Krauly, Sta-Rite, AquaBot, and more. Plus, customers enjoy FREE Shipping and Handling on EVERY ORDER of $50 or more!, Proven Durability. The Hi-E2 sets the standard for pool heaters with a proven in-use record of over 20 years providing ultra-efficient heating with up to a 95% efficiency rating — which cuts operating costs by 15% or more*. Featuring a compact design, the Hi-E2 weighs in at 34% lighter than comparable heaters and with a 33% smaller footprint. , SKU # EHE350NC The Hi-E2 sets the standard for pool heaters with a proven in-use record of over 20 years providing ultra-efficient heating with up to a 95% efficiency rating — which cuts operating costs by 15% or more*. Featuring a compact design, the Hi-E2 weighs in at 34% lighter than comparable heaters and with a 33% smaller footprint., Jandy Pro Series Hi-E2 ... states which require that a pool heater have intermittent ignition. The heater is designed to operate in conventional swimming pool and spa equipment arrangements. It requires 115V 60 Hz electrical power. It has the versatile dual-thermostat control system for pool/spa combinations. The Hi-E2 is certified by CSA …, Pool & Spa Heating; Pool & Spa Heating. Heaters; Heat Pumps ... The large 2.5" x 3" dimension is designed to easily connect with the Jandy Pro Series 3HP Stealth Pump ..., Manuals Brands Jandy Manuals Heater JXi 400 Jandy JXi 400 Manuals Manuals and User Guides for Jandy JXi 400. We have 4 Jandy JXi 400 manuals available for free PDF download: Installation And Operation Manual Jandy JXi 400 Installation And Operation Manual (48 pages) Jandy Pro Series Gas-Fired Pool and Spa Heater, ManualsLib has more than 655 Jandy manuals. Accessories. Models. Document Type. TruGuard. Owner's Manual • Installation And Operation Manual • Installation And Operation Manual • Owner's Manual. TruGuard Cartridge. Owner's Manual. Blower., 3. Sep 15, 2011. #1. I just read the about the color logic light not chaning color and to check for loose grounds. We have two Jandy LED lights and they are also stuck and won't sequence. I tried doing the "color splash" sequence for like five minutes (saw that on a previous post as a solution to a light going dark, not my same problem, but ..., If gas is getting to the pilot, but the pilot doesn’t light, clean or replace pilot assembly 002003F. If there is no gas coming from the energized pilot valve, replace valve. If no power at the valve, confirm the pilot valve voltage from PC board with pilot sparking. If no power, replace the board., View Commercial Products. Build the perfect swimming pool environment with Jandy professional-grade equipment; pool products including pumps, filters, heaters etc., the heater to check the pool temperature periodically and override time clock settings, heating the pool or spa whenever the temperature falls below the set point. This feature on the heater requires additional field wiring. Normal Operation • Lit Jandy icon indicates unit has power. • Choose Pool or Spa. Each has its own set temperature., Apr 20, 2014 · With over 300,000 members, TFP is the largest and most influential pool & spa website on the Internet. The reason is simple: TFPC (Trouble Free Pool Care) is a methodology, not a product that you must purchase. It is being practiced by thousands of pool owners just like you. We are a registered 501(c)3 non-profit that is funded by user donations. , 4. Check for proper clearances around heater and for adequate room ventilation if enclosed. Inspect for blockage or restriction at discharge of flue. 5. Oscillating pump pressure. 5. Clean filter or identify and repair cause of pump oscillation. 6. Low gas supply pressure. 6. Identify and repair incorrect supply pipe size or pipe line blockage. 7., The JXi™ heater sets the standard in pool and spa heating with unsurpassed energy-efficiency and optional cost-saving Integrated Bypass technology that diverts water flow away from the heater when there is no call for heat. Boasting an 84% thermal efficiency rating and a low-NOx design, the JXi is available in both natural and propane gas models., My Jandy Pro Series pool and spa gas heater (JXI400N) was turned on today for the season and when the gas kicked on, it sounds like rocks banging around. It was purchased and installed last July, 2019 … read more