Dux Sunpro

Hi All I have Dux Sunpro DN15DS, it's 10 years old and was going strong until last week. I have had 5 plumbers checked the system, well 4 did not even bother to open the system panel to test what was faulty and the fifth one made some efforts and figured that the sensor cable from the hot logic controller to the heat exchange module is not… Read more ·  1

responding properly as the the gas module is getting too hot and keep on tripping the system, making it stagnant. The part no. is H0405, but I am not able to locate the part online anywhere. The pump on the unit has been checked, the diverter valves have been replaced, it's just the sensor cable is hard to find.

I am wondering if anyone knows or has an old unit or advice where I can find that part would be much appreciated.

Thanks Jimmy

Good product well made – Found in Brisbane need to change sacrificial anode needs changing every 5 years as after 10 mine was completely gone. Would like that printed on unit to remind. Show details

15years old and still going strong – WE are currently looking at utilising the government rebate to upgrade our solar hot water service and am slightly concerned that the quality will compare to our current system which was installed in 2007 in an all electric home providing water for 5 people. Very pleased with our system. Show details ·  1

I installed my Dux Sunpro 315 litre tank in 2007 just this week (17/11/2020) replaced the tank. Steve – Boosted only on odd days after several days of overcast. 3 adults usage dishwasher, cloths wash every 2nd day. Replaced frost only once since 2007 overtemp tripped only once. All ok  Show details ·  2

Excellent – Unit has functioned perfectly for 5 years. First service cost $150, nothing major was required other than slight thermostat adjustment the unit is in perfect condition. The unit is housed indoors and has never gone wrong since it was installed. Call out for service was arranged from the internet, received a callback the next day and the day after that the unit was serviced.  Show details

Only last the 10 years they give you on the warranty – They give a ten year warranty because that’s how long they last before you have to spend lots of money fixing everything Show details

A very poor product – It is a 2010 Sunpro. Gas boosted solar hot water system. Installed as part of a new home build. In the first year one of the panels failed. Replaced under warranty. Subsequently other electrical components failed and the thermo coupling also replaced at my expense. The relief valve is my main complaint. They fail approximately every 18 months. I… Read more

have to replace them at my expense. Each time I have phoned Dux who have refused to accept any responsibility. They some times have offered to supply a valve only if their designated plumber agrees it failed within 12 months. It never happens. The plumber sources a valve and charges me for valve and installation. The latest valve is now releasing water as I type. Dux have advised me the valve should only open when frosty. Every valve installed after about a year opens on cold nights around 5 to 6 degrees. And runs for hours into the morning. I would not buy this brand again.

Terrible – In the first year not working properly I had no hot water got it repaired . Third year same thing got it repaired. Fifth year water gushing out caused a lot of damage to the ground where it was installed issues again had it repaired..seventh year again no hot water another issue had it repaired.. just on 9 years once again same issues no hot water… Read more

needs to be repaired .. it is a terrible product it’s caused me nothing but a constant financial burden..I’m a single mother with 2 kids and I have no hot water because I’m trying to figure out how and what to do with a product that clearly was and is faulty I’m sick of trade plumbers using the excuse that this is normal to happen to this product . clearly it’s not and I’m again stuck financially not knowing what to do .. I had it installed when I built my new home with Burbank homes .. cheap nasty disaster of a product .. DO NOT BUY THIS PRODUCT

Wow - the absolute worst customer service experience of my life – Currently on day 5 without hot water. Dux rep plumber attended yesterday and advised he doesn't know what's wrong with the system. System is 4 yrs old and has been nothing but trouble. This is the second system we've had after the first unit completely failed after 3 months. Calls to the call centre go swapped between 5 unhelpful operators as… Read more

I wait for promises of returned calls and 'we'll get back to you' but no one does.

An absolute disgraceful experience of customer service that I am truly shocked by.

Another unhappy customer in a long line – I appear to be another dissatisfied customer in a long line of people unhappy with the Dux products. I also had a Dux SunPro DN15DS installed as part of my new home package. We are in country Victoria so have used gas cylinders. The unit was installed in 2015 and needed a replacement temperance valve immediately. Since then we have always had… Read more

concerns about the high gas usage. We had a plumber check it (with no line faults found). I contacted Dux but they advised there were no known issues. When we started using 45 KG in a month I discovered (via google) that this unit already had a safety recall notice for a "significant gas release issue". I spoke to Dux again but they claim the unit was fixed before we received it. Clearly it was not and they refuse to investigate it further. I will replace this unit asap and this experience says it all about the value of the DUX support and also its brand. Thanks Dux and please don't bother asking me to contact you.....you had your chance.

Leaking Dux Sunpro DN15DS – Had a Dux Sunpro DN15DS installed on a new house, just noticed a water leak at the bottom of the unit. Last year during winter had the relief valve replaced. Show details

Worst hot water system ever! Broken just after 5 year warranty! – Worst system! Not having enough hot water to use 2 showers at once. Problem starts after 3 years and now just after 5 years, there is no hot water at all. It happened to many other people that have the unit installed in 2013. No wonder the product is now discontinued. Dux does not take responsibility. I have contacted ACCC about this. Show details

works great but persistant breakdowns – Had this unit for 7 years now and have had persistant problems new house built by Burbank. DAY 1 no hot water service callout and finally fixed. From then on it worked well until 2 yrs and electronic controller died 650 $$$$ and out of warranty as with previous comments its all on your own back now several breakdowns since then and a very… Read more

sympathetic plumber who has a serious dislike of the brand looked after us each time with no charge sometimes as in the area and was a quick fix but the inconvenience of breakdowns make it a poor choice of unit it has now gone again and think this will be the last

Very bad product and customer service – Burbank has installed this product at our property in Aug 2013. We had hot water problem already 3 times in 6 years. Now, again on 14/06/2019 hot water stopped and when I called company - guess what - the girl on the other side started saying it's out of warranty instead discussing the problem or offering some guidance or help to get it fixed. Hope, management will check how customer service people are dealing with the customers. Show details

Worst Dux sunpro hot water system – I WOULD NEVER RECOMMEND CHEAPEST PRODUCT DUX DN15DS TO ANYONE We moved to our home in 2012 and thru our builder the dux sunpro DN15DS hot water system was installed.. Builder charge big amount for the house construction and installed cheap products like this Dux sunpro. Before 2 yrs I had a issue with tempering valve for which.i spend $350 and… Read more

now in 2019 I got a big issue with diverter valve.. I called the dux company and the staff was so rude and said it's out of warranty we can't help you you find the plumber and sort it out. I got 4yr old boy and in this cold weather I am without hot water since last 4 days... plumber came to inspect and advice it may take 4 weeks time and if you can't wait just replace the system. I am still waiting to get it fix and replacement is costing me too much... And still no hot water coming to my home I am going to make a big complain about this product and company.. In fact we should all make a big complain against this company for delivering cheap product and giving trouble to all those families who have gone thru this and wasted there hard earning behind to fix it or replace the product.. And now I am just worried of if this type is replaced then next time which will be the other issue gonna come. In fact they don't deserve 1 star rating...

Please stop selling such a cheap product.

Worst hot water service on the market!!! – I would not recommend this product to anyone. My partner and myself purchased a new house 2 years ago which came with a sunpro unit and have had nothing but problems with it spewing out water. After calling dux and being told that a 3 year old unit is not under warranty it cost me $400 for a new diverter valve. The plumber also shook his head when… Read more

he seen I had a sunpro unit and said that they are a bottom end product and to get rid of it as soon as I can.

Not working properly – I installed this system in my home 4 years ago through Mac Donald jones Homes and each winter I have cold water and am unable to shower or wash dishes of an evening.We experienced this issue in the first year several times and technicians came and fixed and changed different parts many times but the issues remains same.Then they changed whole unit… Read more

and was working fine.Now the problem is not hot water if it is cloudy.Sometimes if we turn off and on the the power switch it will start and hot water will be there for while.Sometimes it doesn’t work.Dux system is a water cooler.

It is that time of the year again where the dux cools the water during the day! – I purchased my home 4 years ago and each winter I have cold water and am unable to shower or wash dishes of an evening. It seems that the water pump just cools the water down during the day. Electric boost of a night means I can shower in hot water morning only! Each year I get the system looked at and am told it works fine. My last house had… Read more

a Solarhart, it was a fantastic system and the water would only be cold if I had 2 cloudy days. Dux system is a water cooler.

Not good enough – After noticing the solar connected Dux tank seemed cooler I turned on the booster switch overnight. next morning the water was cold. A visit by the installer replaced the thermostat. I retain the installation reciepts. Show details

Absolutely disgusting support – 6 year old system. $1000 on new pump and diverted which was suggested by tech support over the phone as Duc have no supportimg plumbers in our region. No tech support in our area. Customer service Would allow me to talk to any one in management. Totally appalled at this product and Dux staff.  Show details

Do not buy a Dux Sunpro Solar system! – Within 11 years we need to replace the 315 litre tank for the 3rd time. 5 years ago the first tank was replaced after threating to shame them in providing a replacement. Now the tank is leaking again and water is coming out around the side inspection cover. After contacting Dux they will not replace it, will cost approx $2500 to replace. They… Read more

Market a 5 year warranty. They should say their product will last 5 years. To replace the whole system with another manufacture will cost $7000 plus. Don't buy a Dux you will be sorry, I have contacted the Dept of Fair Trading and hopefully they can do something.

We wasted our hard earned money – In 2013 we had a Sunpro solar hot water system installed in our newly built house. Within 3 and a half years the collector tubes under the glass panels started to corrode. As the system was still under warranty I contacted Dux but was told by the receptionist to send photos of the problem. I sent the photos to them but was told that they would not… Read more

do anything unless the system was leaking even though there was a five year warranty. I have kept all the correspondence which I had with Dux, including photos.This company should be discredited in selling a really bad product. The corrosion is really bad now and it is out of warranty, I fear that at any time it will cease to function. Stay away from Dux.

Stay away from DUX ...Total waste of money – I have got DUX DS15DS solar boosted hot water system only 4 years old and every year from last 2 years I have to spend $500 for repairs and this is 3rd year where I have got yet another problem.. I will complain to related authority ... their customer Service is terrible too...  Show details

Worst than Garbage! ACCC needs to get involved! – In 7 years, the DUX had a recall, then a replacement and now after 2 years its broken again, worst still, even only after 2 years, no warranty as it is from "First install" the replacement unit does not come with warranty!!!!!!!! What a hog wash. I will get ACCC involve again. Last time they didn't want to replace as well giving all reasons,… Read more

once ACCC got involved they replaced the tank but I had to pay for installation and other service fees! cost me over $600 last time. I thought consumer is protected, this company should be audited and fine for selling unfit misleading product! Customer service is worst than robot. PLEASE BOYCOT DUX!!! save yourself anguish and pain. Customer Service suggest Hot water system last only a couple of years! My last house had one hot water system for over 15 years!

Total Garbage – We installed this unit just 4 months back after our old unit started giving problems. In the first week, water started gushing out from the opening at the top of the unit and now the sensor has stopped working. We have been without hot water for almost one week. I called Dux and the reply given by their customer service person was that I am not… Read more

the only one without hot water. Dux does not care about their customers. Their customer service people are rude. They are insensitive to the needs of their customers. Never buy a dux product.

DUX SUX – Take into cost of replacing DUX panels every 5-6 years, mine started leaking after 2 years, at the time DUX said they would replace them but I would have to pay the cost of removing and installing the new ones ... DUX SUX  Show details

Useless crap!!!!! stay well away!!!!! – We had this unit installed at our new home. Worked fine for about 18 months, but it blew the joining pipe between the 2 panels- the pipes coming out of the panels are very short not much room for the olive ring to seal on!!! Now just as we are coming into winter this year, I now notice our frost valve is leaking even though the temps around 10… Read more

degrees. Bought a new one & installed but its still opening to early.....need to investigate more.

I think the money I spent on the solar hot water system would have been better spent on a basic hws & solar power system & let it pay for the heating during the day!!!!

Awful Company, Useless Product – 5 years on from installation, and the system is not working again. Gas booster won't ignite. As the last 3 times it's been repaired have been diverter valves, I can safely assume that this will be the problem again. First three repairs were under warranty, last one was on us. Most unreliable product I've ever come across and trying to get a… Read more

plumber in my area to service this system is almost impossible. I honestly don't know how Dux could sell these.

Terrible Company & Product – We built the house back on Aug 2013 and we got this Hot water cylinder choosen by the builder maybe its a cheaper option for them!! And unfortunately not even 5yrs now its broken and not working anymore, I called a professional Plumber hoping we can able to fix it but he said he got alot of bad experience with these products by DUX. Even someone… Read more

can fix it, the problem will come back again and it wont be cheap.. I highly won't recommend this company to anyone, not very helpful Customer Service as well!!!

Terrible service – My builder bought a Dux hot water system for my brand new house 3 years ago. The Valve and Sensor stopped working completely (no shower for 6 days) and whilst the drum is covered by warranty a small cable leading to the thermostat broke and was not covered - $300+ for a 10cm cable and sensor & $600 for labour and no shower. When we rang Dux we… Read more

were given the wrong information by a rude Customer Service person so we sent numerous emails to the Manager who was extremely rude and said under NO circumstances would she assist in any of this. I would like to know if the Drum is under warranty for 7 years how come a small cable a) cost $300 and b) not covered. I could have bought a whole new system for the cost of repairs.

I would NOT recommend Dux to anyone.

don't buy – Crap. gas never switches over need to manually reset. ie any time there is clouds after a few days sun. Also 1yr warranty on a system with a 5 yr payback! completely not working now after less than 3 yrs use. had the heater unit swapped out after 6 months (luckily within warranty). Would never buy another dux.  Show details