{"id":"547","created_at":"2022-09-30T00:41:03.092Z","updated_at":"2025-03-26T05:55:30.127Z","properties":{"name":"Dux gas hot water system troubleshooting","slug":"dux-gas-hot-water-troubleshooting","blurb":null,"content":"\u003ch2\u003eAre you having problems with your Dux gas hot water system?\u003c/h2\u003e\n\u003cp\u003eWe understand how important it is to have a working \u003ca title=\"Hot Water Systems Sutherland Shire\" href=\"../../../../hot-water\"\u003ehot water system\u003c/a\u003e, especially in the winter months. That\u0026rsquo;s why we have listed some of the issues you may encounter with your \u003ca title=\"Dux hot water systems\" href=\"../../../../hot-water/dux-hot-water-systems\"\u003eDux gas hot water system\u003c/a\u003e and provided a solution.\u003c/p\u003e\n\u003cp\u003eIt is important when troubleshooting to identify the issue, so you can determine why something is not working as expected. We hope the information below will help you get your system up and running as quickly as possible. However, if you are still having problems please contact \u003cspan style=\"font-weight: 400;\"\u003eyour local\u003ca title=\"Expert Plumbers with Everyday Plumbing\" href=\"../../../../../plumber\"\u003e licensed plumber \u003c/a\u003efor professional advice.\u003c/span\u003e\u003c/p\u003e\n\u003ch3\u003eNo hot water\u003c/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePilot light may need relighting, see the section below on how to check \u0026amp; relight the pilot light.\u003c/li\u003e\n\u003c/ul\u003e\n\u003ch3\u003eRunning out of hot water\u003c/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCheck if you have low-flow shower heads installed. Your plumber can replace your shower heads or install water flow valves to all outlets to decrease your hot water usage.\u003c/li\u003e\n\u003cli\u003eKeep track of how much time is being spent having a shower, it all adds up very fast!\u003c/li\u003e\n\u003cli\u003eWash your clothes in cold water where possible.\u003c/li\u003e\n\u003cli\u003eGrowing families, teenagers and an inadequate hot water system don\u0026rsquo;t mix! If you\u0026rsquo;re running out of hot water regularly, you may need to consider upgrading to a larger unit.\u003c/li\u003e\n\u003c/ul\u003e\n\u003ch3\u003eLeaking hot water\u003c/h3\u003e\n\u003cul\u003e\n\u003cli\u003eThis is part of the normal operating conditions, high-efficiency gas storage water heaters will produce some condensation. This is normally drained outside the water heater and can be seen on the ground near the unit.\u003c/li\u003e\n\u003c/ul\u003e\n\u003cul\u003e\n\u003cli\u003eIf the water volume is more than a full bucket over a period of 24 hours, contact your local licensed plumber for professional advice.\u003c/li\u003e\n\u003c/ul\u003e\n\u003ch3\u003eIs the water too hot or too cold - adjusting the water temperature\u003c/h3\u003e\n\u003cul\u003e\n\u003cli\u003eThermostats typically provide a small window of adjustment between 60 and 70 deg for gas storage hot water systems. Thermostats cannot be set below 60 deg. To adjust your thermostat speak to your local licensed plumber for professional advice.\u003c/li\u003e\n\u003c/ul\u003e\n\u003cp\u003e\u003cstrong\u003eNote:\u003c/strong\u003e Hotter water increases the risk of scalding.\u003c/p\u003e\n\u003ch3\u003eHow to relight a pilot light\u003c/h3\u003e\n\u003cp\u003eDo not attempt to light the water heater if the pilot is out and the knob is in the \u0026ldquo;ON\u0026rdquo; position (one of the number settings). Follow the steps below.\u003c/p\u003e\n\u003cp\u003e\u003cstrong\u003eIMPORTANT - Do not look directly into the burner area.\u003c/strong\u003e\u003c/p\u003e\n\u003cp\u003eKeep your head above the top of the access cover opening. Use a mirror to observe the flame.\u003c/p\u003e\n\u003col\u003e\n\u003cli\u003eTurn the control knob fully clockwise to the \u0026ldquo;\u0026bull;\u0026rdquo; - off position.\u003c/li\u003e\n\u003cli\u003eWait 5 minutes so any build-up of unburnt gas can escape.\u003c/li\u003e\n\u003cli\u003eTurn the control knob to the pilot position.\u003c/li\u003e\n\u003cli\u003eDepress the control knob fully until it disappears below the housing and after 30 seconds, whilst keeping the control knob depressed, repeatedly press the igniter button (for up to 40 seconds) until the pilot flame ignites. Note \u0026ndash; it is not possible to depress the control knob fully if the gas control valve has activated its safety shutoff feature. In this case, wait 60 seconds for the gas control valve to reset.\u003c/li\u003e\n\u003cli\u003eKeep the control knob depressed for 20 seconds after the pilot flame lights. Use a mirror to observe the pilot flame. Do not attempt to observe the flame directly.\u003c/li\u003e\n\u003cli\u003eRelease the control knob and check the pilot is still alight.\u003c/li\u003e\n\u003cli\u003eIf the pilot has failed to light or has not remained alight, turn the control knob to \u0026ldquo;\u0026bull;\u0026rdquo; (off). Wait 5 minutes for the escape of unburnt gas, then begin again at step 3.\u003c/li\u003e\n\u003cli\u003eWhen the pilot flame remains alight with the control knob released, turn the control knob anti-clockwise to one of the number settings. A minimum setting of \u0026ldquo;6\u0026rdquo; is recommended and this will give a water temperature of about 60\u0026deg;C.\u003c/li\u003e\n\u003cli\u003eTurn the control knob to a higher number for higher water temperatures.\u003c/li\u003e\n\u003cli\u003eIf the main burner does not light at the selected setting, the water may already be at the selected temperature.\u003c/li\u003e\n\u003cli\u003eReplace the access cover and ensure it is firmly in position.\u003c/li\u003e\n\u003c/ol\u003e\n\u003cp\u003eIf you still have no hot water, call your local licensed plumber for professional advice.\u003c/p\u003e\n\u003ch3\u003eNo hot water\u003c/h3\u003e\n\u003cul\u003e\n\u003cli\u003eConfirm the pilot is alight - if not consult the Owners manual or see the instructions above to relight.\u003c/li\u003e\n\u003c/ul\u003e\n\u003ch3\u003eHigh gas bills or insufficient hot water\u003c/h3\u003e\n\u003cul\u003e\n\u003cli\u003eConsider that often the hot water usage of showers, washing machines and dishwashers can be underestimated. Review these appliances to determine if the daily usage is greater than the capability of the water heater.\u003c/li\u003e\n\u003cli\u003eIf necessary check the shower flow rates with a bucket, measuring the amount of water used over a period of time. If it is not possible to adjust water usage patterns, an inexpensive flow control valve can easily be fitted to the shower outlet.\u003c/li\u003e\n\u003cli\u003eIs the water heater the correct size for the requirements? Sizing details are available from your Dux supplier.\u003c/li\u003e\n\u003cli\u003eIs there a leaking hot water pipe or a dripping hot water tap? A small leak can waste a large quantity of hot water. Replace faulty tap washers and arrange for your plumber to rectify any leaking pipe work.\u003c/li\u003e\n\u003cli\u003eIs the Pressure \u0026amp; Temperature Relief Valve discharging too much water? See below.\u003c/li\u003e\n\u003c/ul\u003e\n\u003ch3\u003eContinuous trickle of water from Pressure \u0026amp; Temperature Relief (PTR) valve\u003c/h3\u003e\n\u003cul\u003e\n\u003cli\u003eThis is most likely due to a build-up of foreign matter. In this case, try gently raising the easing lever on the PTR Valve for a few seconds, then release gently. This may dislodge a small particle of foreign matter and rectify the fault.\u003c/li\u003e\n\u003c/ul\u003e\n\u003ch3\u003eWater discharge from the PTR valve\u003c/h3\u003e\n\u003cul\u003e\n\u003cli\u003eIt is not unusual for a small quantity of water to discharge during the heating of water in the storage tank. The amount of discharge will depend on hot water usage and the size of the storage tank. As a guide, it will discharge about 2% of the volume of the water heated. Continuous leakage of water from the PTR Valve may indicate a problem with the water heater. Shut down the water heater and contact your plumber.\u003c/li\u003e\n\u003c/ul\u003e\n\u003cp\u003eIf after checking the above points, the problem has not been identified, please contact Everyday Plumbing and Gas Services. We service Sydney, the Sutherland Shire, Canterbury Bankstown, Liverpool, and St George areas. For all your hot water needs contact one of our professional plumbers and gas fitters at 1300 400 200.\u003c/p\u003e\n\u003cp\u003eReferences:\u003c/p\u003e\n\u003cp\u003e\u003ca href=\"https://www.dux.com.au/troubleshooting/\"\u003e\u003cspan style=\"font-weight: 400;\"\u003ehttps://www.dux.com.au/troubleshooting/\u003c/span\u003e\u003c/a\u003e\u003c/p\u003e\n\u003cp\u003ehttps://fexob3edmqk2c8ejzgyqpg7x-wpengine.netdna-ssl.com/wp-content/uploads/2019/03/H3109-L-Dux-4-5-Star-Gas-Manual_LR.pdf\u003c/p\u003e","meta_desc":"We have listed some of the common issues with Dux gas hot water systems \u0026 how to troubleshoot the problem","read_time":null,"meta_title":"Dux gas hot water system troubleshooting | Everyday Plumbing","featured_image":null,"info_category_id":323,"info_collection_page_id":322},"collection":{"id":"322","properties":{"slug":"hot-water/information","content":null,"meta_desc":null,"meta_title":null,"service_id":2}},"articles":[{"id":"344","slug":"benefits-of-an-instant-gas-hot-water-system","name":"Benefits of an Instant Gas Hot Water System"},{"id":"346","slug":"costs-involved-in-buying-and-running-various-hot-water-systems","name":"Costs involved in buying \u0026 running various hot water systems"},{"id":"348","slug":"how-often-should-i-arrange-a-hot-water-service","name":"How often should I book a hot water service?"},{"id":"364","slug":"what-s-the-difference-between-a-tempering-valve-and-a-tmv","name":"What’s the difference between a tempering valve \u0026 a TMV?"},{"id":"368","slug":"which-hot-water-system-is-right-for-me","name":"Which hot water system is right for me?"},{"id":"373","slug":"how-does-an-electric-hot-water-system-work","name":"How does an electric hot water system work?"},{"id":"374","slug":"hot-water-systems-how-do-they-work","name":"Hot water systems - how do they work?"},{"id":"363","slug":"what-size-hot-water-system-is-right-for-me","name":"What size hot water system is right for me?"},{"id":"380","slug":"how-does-a-gas-storage-hot-water-system-work","name":"How does a gas storage hot water system work?"},{"id":"381","slug":"how-does-a-heat-pump-hot-water-system-work","name":"How does a heat pump hot water system work?"},{"id":"382","slug":"how-does-an-instant-gas-hot-water-system-work","name":"How does an instant gas hot water system work?"},{"id":"483","slug":"gas-vs-electric-instant-hot-water-systems","name":"Gas vs Electric Instant Hot Water Systems - Which one is right for you?"},{"id":"485","slug":"continuous-gas-hot-water-problems","name":"Instant Gas Hot Water System Problems"},{"id":"525","slug":"rinnai-hot-water-troubleshooting","name":"Rinnai hot water systems troubleshooting guide"},{"id":"542","slug":"bosch-hot-water-troubleshooting","name":"Bosch gas instant hot water system troubleshooting guide"},{"id":"543","slug":"vulcan-hot-water-troubleshooting","name":"Vulcan gas hot water system troubleshooting guide"},{"id":"547","slug":"dux-gas-hot-water-troubleshooting","name":"Dux gas hot water system troubleshooting"},{"id":"548","slug":"rheem-electric-hot-water-system-troubleshooting","name":"Rheem electric hot water system troubleshooting"},{"id":"598","slug":"most-efficient-hot-water-heater","name":"What is the most efficient hot water heater?"},{"id":"709","slug":"instant-gas-hot-water-system-problems","name":"Common problems with instant gas hot water systems"},{"id":"1369","slug":"benefits-of-heat-pump-hot-water-systems","name":"Benefits of Heat Pump Hot Water Systems"}]}