Dux Sunpro 305

Design fault – the top of the storage unit has a synthetic insulation cover that retains any condensation, and an aluminium insulation cover that stops the condensation from ever evaporating ... this will eventually cause the top of the tank to rust though ..... replacement cost $5000+

Piece of crap – Bought system, failed at 18 months, put in new gas valve, heats water to point of expelling 200litres plus a day through relief valve. Have to manually turn unit on and off to get correct hot water. No warranty on unit or on replacement valve ( even though operator said there was warranty) response from dux too slow, multiple follow ups to get limited answers. Show details

Not at all reliable or cost effective – SUNPRO 305 Installed 12th August 2007 Pilot Light malfunction Unitrol Unit Replaced (Warranty) 15th January 2008 Cost of plumber to me. Pilot Light malfunction Unitrol Unit Replaced (Warranty) 5th January 2009 Cost of plumber to me. Pilot Light malfunction Unitrol Unit Replaced (My expense) 5th December 2011 Total cost to me. Pilot Light… Read more

malfunction Unitrol Unit Replaced (Warranty) 2nd November 2012 Cost of plumber to me.

Pilot Light malfunction Unitrol Unit? Waiting to Repair 24th August 2017. I hope the Unitrol Unit is still available.

Well, it lasted at least nearly 5 years this time...

Utterly Guttered – This review is also in the Dux Prodigy 5 170lt model as it's the similar unit from Dux Disastrous; I had no choice because the builder had it as a credit supplier. So we place 3 solar panels on the roof. This is the history of this system: - had to replace 2 thermostat in the tank, finally got the experts out to calibrate the system to… Read more

MY specs.

- the 2 out of 3 panels sprung a leak; cost $400 labour to be replaced. The 3rd was replaced because I complained to Dux headquarters.

- 240V gas relay solenoid replaced. $360

- tank now leaks, being told that to replaced the whole lot.

unfortunately all new approved building must have solar HWS. This brand and system is definitely not one to get. If you total the cost up there is no savings here, this system cost around $6-8K to fit and installed back in 2006.

It will cost and extra to removed those rubbish panels of the roof approx $700-800.

I'm utterly gutted and disgusted at this Dux gas boosted solar solutions.

Never install any of there products, it's cheap and disgusting manufacturing.

To top it off there system says in the specs frost protection built in; Well what this is, is a valve that opens up and lets tap drinking grade Melbourne water to flow out of the system into the down pipes out into storm water waste... This happens when it gets below 4C. So in winter expect a high water usage.......what savings?

I've now gone basic, disabled the solar hot water service and use a gas stainless steel tank thats NOT DUX.

If Dux reads this they can confirmed with me as there aurthosrised service agent has a complete record.

leaking panels – My system was installed november 2006, within 12 months I noticed panels leaking, replaced under warranty, 2years later another leaking panel, panel replaced, installation at my expense. Next my hw unit burst, replaced installation at my expense. last week another panel(s) are leaking. that means over the past 10 years at least 4 panels have been… Read more

replaced at a significant cost, solar panels to be abandoned, hw unit to be replaced shortly.

products are of very poor quality, maybe imported ,will never purchase any DUX products again.

Disappointing – Installed in new home in 2008. Water temperature is luke warm to cool. Only is little warmer on extremely hot days.. Pilot known to turn off regularly. 3months ago took several days and attempts to turn it on.. got it going. Now the solarnoid is gone and needs replacing.. dont think it will help with temparature of water but have no choice… Read more

to get it fixed. Contact Dux and favourite line is out of warranty. It is not a product suitable as a hot water system maybe a product suitable to take the edge of chilled water.. Not reliable and definately does not do what it is suppose too.. also too many problems. Very disappointed. .

Never buy the Dux installed your house – Never buy Dux Sunpro 305 system installed your house. This is very old model hot water system and had problem all the time and never fix the problem such leaking . They had so bad after sales service and they do not care about quality. Don't buy this so cheap system.

Dux Sunpro – Contacted dux in relation to Hot water system leaking. In sixth year so out of warranty. Had a couple of plumbers look at system both indicated that this is a fault with this unit and dux are aware of issue. Leak probably started when still in warranty period and progressively got worse. All advice from Dux and sales people at time of purchase… Read more

indicated that system will last 10-15 years. This product and company did not meet what it had promised. Dux customer service stuck to line about 5 year warranty - knowing there is a fault very disappointing as Dux were very good when the product was initially installed.

Dux Sux – Dux sux! We had a Dux Sunpro 305 system installed as part of our new house package in 2007. Henley must have chosen this unit because it was the cheapest and we didn't know better. In hindsight, I wish we questioned all their brand choices because Henley don't care about quality. Anyway, within a year we had to have 2 of the solar panels… Read more

replaced.

And then another within the next year.

And another call out in 2012. They disconnected the leaking solar panels but couldn't replace them immediately. 3 months later we were still trying to get it fixed. It took 4 weeks for their after-sales "customer service" to respond to our requests. This repair was outside warranty so they said we'd have to pay in full. We said forget it and we'll rip out the whole system and replace it with something that works. We said we would not pay because the whole system was shoddy and we should not have to pay for an annual call-out! Eventually they agreed to cover it and replaced all 3 panels as well as 5 other parts. The technician said the new panels were from a different supplier and are better quality.

Hah!

Dux wouldn't know what quality is!

Nor customer service (do not expect a call back, and expect a total runaround from them).

And yes, another call-out 2 years later in 2014. This time they said it was the frost-valve leaking and replaced that.

Now something is leaking again - is it the panels? Or the frost valve? Who knows. We're fed up with the lousy quality and lack of customer service. I don't want to try to get them to fix it - it's just not worth the stress!

So we're looking at replacing the whole system with something that works.

Oh, yes, the water storage unit? It's crap too. We used to get 4 showers from our old 130L unit. This one we're pushing it to get 2 from about April to October when the solar is not doing much (in Melbourne)! From a 170L unit that's bad.

No reply from complaint – Well we did the complaint about the dux system. We had a reply from the company saying they would look into it if we sent an email with all the details, we did so. Surprise surprise NO reply back. So still not happy with Dux, also now I am worried about the new panels are they covered by ANY warranty? Will we be up for more replacement costs if these are bad as well? This was asked in the email - no reply.

Very disappointed in Dux support – Our Dux solar hot water system needed a replacement tank and plumber told me I would need to upgrade to newer Dux model. I agreed and a new tank was ordered from Dux. Within 2 hours I decided to cancel the order to allow me to consider other options. Dux are now charging 20% 'restocking' fee - $561. This is a ridiculous amount of money for what? -… Read more

clicking a couple of buttons on a computer?? When I phoned Dux they were most unhelpful and would not even tell me the price of the unit. Needless to say I will absolutely not be considering Dux as a replacement system.

Instaled 2007, fixed multiple times, now tank is leaking – We had the sunpro 305 installed with our new house in Feb 2007. We had trouble from the start. Feb 2007, 2 days after moving in pilot light wouldnt relight. 4 feb 2008 same problem. Feb 2009 1 panel burst needed replacing. Feb 2009 later in the same month, no pilot light again. 5 may 2009 2 new panels needed after replacing one in feb. October… Read more

2010 pilot light would not light again. March 2012 same problem, no gas boosted as pilot light not working again and the solar was heating up the water so we dont know when this problem started. Dux technician replaced something and it has not had a problem related to gas pilot light since, and Dux fixed all the previous problems. However in early december 2015 it started leaking water. Darebin gas have advised me the unit needs to be replaced with a sunpro delta gas boosted tank at $3000 supplied and installed. If I install another brand I need to replace the solar panels as weĺl. Not very happy at all.

Scrap metal – Dux 305... We have had over 8 solar panels replaced plus 4 frost valves. Now its the pilot light. Would not recommend hardie Dux solar / gas hot water unit. This has cost us more in repairs then the initial cost. Time to replace with a superior product.This should be an easy task.

A number of issues over the years! – From day one of the system being installed in our new house we had issues with temperature, on a sunny day it'd be great once the solar section heated the system. Then on gas it'd go luke warm at best. Later we dealt with constant leaking and bulging of the panels around the pressure release valve, despite frequently using the pressure release… Read more

valve to mitigate this.

Finally, whilst I was on my way to work, my wife called stating we had water flooding through the roof. Solar panels had burst spraying hot water directly under the tiles. Organised a local plumber and had the solar section disconnect. Our installer was completely unwilling to help so no solar for us!

Not too impressed with the product, have contacted dux through their online service request tonight, here's hoping it either gets fixed or replaced!

Looking to build again in the coming year, I doubt we'll install a dux.

Silence – Emailed DUX a week ago and no reply!Perhaps they looked at my file and saw, that every panel has been replaced twice and 2 anti freeze valves, I may have been put into the too hard bin?

load of rubbish – I have had this for 7 years in that time I have had a half dozen call 3 in the first year , the pilot light system has been replaced and the solar panels have been replaced now I have this consent thumping noise which have been told could be the solar pump ,have spent over $450 on this rubbish want pay anymore just waiting now for it to blow up

Anti Frost Protection Valve Leaking fault – Disappointed with the product and service. Unreliable company. Product under warranty and still unable to get hold of DUX to make them accountable to their own disclaimer policy. would not recommend to any household to DUX solar water system. its a guarantee lost of money. water bill increase caused by DUX!!

Cant believe they can sell this product – My mother in law moved into new home with Dux Sunpro water heater, she complained about the water never being hot enough from day one, within 3 years the panels had failed and were leaking day and night, they replaced them under warranty but she was forced to pay for the labour cost, then within 6 months the hot logic solonoid thingy died and it… Read more

had to be replaced,not covered by warranty, then the thermocouple dies and the pilot wont light the unit so it too is replaced but not under warranty, now one of the panels is full of water/condensation which leads me to believe its failed again and the frost protection valve leaks all night long, to make matters worse I believe their new panels do not have 5 year warranty, they only have the balance of the original warranty period, so even though they are brand new they will not offer 5 years, says a lot about there confidence in their product.How they continue to get away with selling this type of rubbish is unbelievable,

I would advise anyone who is having a hot water unit replaced or having a home built to make sure that the plumber or builder does not install one of these units, you only need to read thru all the current reviews and you wont find a positive one, I'm now going to try and get them to come out and check their new (18 month old) panels and replace them if required, they have a statutory obligation to back the products the sell, don't take our money and then say sorry its not our problem, all consumers need to be made aware of their products,not bloody happy!!!!!!!!!

Not a reliable system, given up! – I have had a plumber come out to fix this unit 3 times now, the thermocouple along with the panels have needed fixing, after $500 out of pocket I am now back to square 1 which is NO hot water. It couldn't come at a worse time with my fiance being 32 weeks pregnant. I would save your money and look else where!

Anti Frost Valve – The Gas heated Sunpro 305 HWS has over the last 5 years appeared to operate satisfactorily. The Solar panels themselves do a job. The component that fails is the Anti frost valve. This simple valve jambs as the seal wears and the spring tension diminishes. This results in water discharging at night and the units pump running accordingly costing… Read more

the consumer hundreds of dollars.

The complicity of the design and construction of the Anti frost valve is equivalent to that of a wheelbarrow ( without implying any disrespect to the wheel barrow)

The cost of the anti frost valve is exhorbatant.

The Culture of the Manufacturer defensive and uncooperative restricting consumers access to technical advice. It is a closed shop that hides behind the overprotective notion that mechanical reasoning is restricted to licensed plumbers, who a sub trade that provide a service to registered Unlimited Builders, whose skills are not recognized by Dux. As a builder I will not support this company or its products, more significantly, the defensive operational culture exhibited by them when confronted by a customer with a problem and requiring detailed information regarding research of better option to fix common recognized problems with the Dux system.

No returning trade from me

R. Fenton

Not too happy about the Dux Sunpro unit – Faulty since installation, with initial faults rectified (replaced solar panels, thermo couple, frost valve etc...). Installed May 2008, now playing up again. Pilot light refuses to stay lit, Solar pump siezed, thermocouple failure again, lots of rusting at the base of the heating tank which is almost at the point of failure..........now… Read more

looking at replacing the system. Our plumber contacted Dux service and they just told him to replace the system....

Considering the cost of the system when we purchased it, I am frustrated at the failure rate that it revealed over the last few years. I would have expected at least 10 years of service before any issues occur, but since its installation it has been nothing but problematic.

Would love to hear from Dux to see if they can replace this faulty system.....otherwise I will move onto a more reputable company and look at installing a non solar system (because I cannot possibly afford to replace this one at current prices).

If Dux can make this right, I would happily stick with their products...

Most disappointed with Dux System installed in my new house built in late 2008 – Warranty period of 5 years is just over and Dux refuses to fix a problem without cost that has started in the 6th year. From this site I understand that there are several complaints of the same type. Water leaks continuously from base. Don't ever buy this product. Have had problems all through the early years. Although fixed under warranty the inconvenience is painful!!

Terrible Product - Nothing But Problems - Unsatisfied with DUX Products – We had had the Sunpro 305 installed in our new home in 2007. 3 years later the solenoid needed to be replaced, but outside of the 1 year part warranty, so I had to pay for the expense on the weekend when it broke. Now the hot water system is leaking from the bottom and is all corroded. I too called Dux who stated out of warranty. I have seen… Read more

similar problems with this unit on this review and am very unhappy with DUX and their product. I am now considering my options and pursue the matter with the ACCC. This must be a problem with this particular model because too many people are having the same issues.

Poor product – As part of a new house less than 2years old we had the sunpro installed. Now the solenoid, thermocouple and gas control unit have all died. We now have no hot water thanks to the problem happening on the weekend. a call out to a plumber ended with a large bill and no solution as they were worried about doing damage.

Terrible product with even worse after sales service – I have have multiple problems with my sunpro 305. First was the panels started leaking and was initially advised it wouldn't be covered under warranty and after escalating it to a team leader it was eventually fixed. 2nd problem was the gas regulator stopped working, it was on a w'end and I needed it fixed so I payed a plumber to replace it at my… Read more

own expense. It is now 5 years and 4 months old and has now started leaking from the bottom of the tank and it is all corroded. I called up Dux and as expected they say it is out of warranty so bad luck. I will be pursuing this withe ACCC as a product that is worth approx 3.5k I would expect to last longer than just over 5 years. Especially something I have had multiple problems with and by all the review on here is not a great product.

Awfully bad – Pilot light stays lit for a day??. And then keeps going out!!! dux authorized plumber did not even return my call, so spent $240 at reece to change the solonoid...will see how it goes I guess

Do not ever buy a dux – Horrible, the cylinder broke down in exactly after five Years. Please guys do not buy a dux- sunpro or dux products and their customer service is rubbish.

Avoid at all cost – Biggest heap of rubbish one could buy. Inefficient to begin with. Didn't work from day one. 4 years old been fixed 4 times. Now requires fixing again for the 5th time. Solar panels, sensors, all been replaced. Yet the replacements need replacing now. Buy a chromogen. Not going to bother with another warranty claim as its clear that buying and dealing with dux is pointless. So replacing with Instantaneous and no solar instead.

Not reliable at all – We had this HWS installed just 2.5 years ago and now it is leaking. The water runs 24/7 and I can hear it all day specially in winter. DUX asked me to speak to Darebin Gas who would charge me to get someone to look at the issue. Why DUX cannot arrange someone to at least have a look at the problem???? Couple of months ago the solenoid (I guess)… Read more

broke which stopped the Pilot ignition. They replaced it happily at that time. Why not help me now? As others have mentioned, my water bill doubled as well just because of this. Called them few times but the same thing and no support was shown.

I called someone the other day and described this issue and was advised that DUX uses AVG anti-frost valve which is the cheap one and does not operate at the optimum level etc...

I haven't seen such service before. No wonder why everyone here is complaining about their system failing or not working reliably as it should.

Poor quality, product not fit for purpose – We had a Dux Sunpro installed with our new home back in 2007. In 2008, we had to have solar panels replaced because they were leaking. In 2009 we had them replaced again because they were leaking. Now in 2012, they are showing the same problems and we are out of warranty. Obviously the panels are not fit for their intended purpose. If a… Read more

system comes with a 5 year warranty, one would expect atleast 5 years from the product.

I couldn't complain about the service, they attended with effeciency. Whilst the customer service people are still nice to deal with, where does it leave the reputation of the product if they are still selling goods that aren't of reasonable quality?

Update as at 7 January 2014. I just had to reduce the 'stars' to this product after I have just forked out yet another $400 for a frost valve that goes annally. Not even six years old and we've spent enough to pay for a couple of whole new hot water services. Not to mention the water that we've wasted...

Please stay away from this product consumers!!! After you are out of warranty the customer service reps have a standard response...you are out of warranty, we can't help you, here's the number for a gas plumber. I had an added bonus..'why don't you wait a few days and see if it stop leaking'. Um...great idea... Efficiency of service Faulty product...again and again and again....

Dont buy dux sunpro solar hws - faulty products and solar panels – i am not one to write any bad reviews unless there is problem that a company and others need to be aware of. DONT BUY DUX SUNPRO SOLAR HWS OR WASTE MONEY ON FIXING . inherited dux sunpro 305 system with new house and has been nothing but problems .Your staff need to display a bit more empathy with complaints as they are defensive,dismissive and… Read more

point to warranty expiry only .

System was installed march 2007 panels leaking and replaced 2010 under warranty with $320 fee to install , furthermore thermostat replaced twice $100 X 2 and new controller module $538 JAN 2013 as darebin gas advised and panels leaking again . i will be lodging complaint with consumer affairs victoria and seek to have panels replaced or for dux to remove them at their cost .i can see similar dux sunpro system solar panels leaking on neighbors houses and the rest have bypassed panels which darebin gas recommended.

Lift your game dux and supply products fit for their designed purpose . nothing faulty product , poor after sales service

Never buy dux again – Never worked from the start moved in to my new house new dux water unit Alway over heating. Turning it self off. Leaks. Solar water computer on the side of the unit needed to b reprogrammed Throne stat had to get replace all the time ring up dux Alway bad service 1st year had a repair guy come out 5 times in one year from dux. Had a diff brand… Read more

name at my old house had no problem really un happy with this dux system 7 years of ringing duxs about the same problem happening over and over again same parts getting replace from day one. Time to change brands never duxs again rubbish

Bad warranty. Service. 7 years still same problems never fix only band aid from duxs