Dux Airoheat Questions & Answers (page 2 of 5)

Fan does not work all the time but when it is heating water it should be going. Probably best to get it serviced given age but in our view Dux products are poor quality and getting service help from them is worse.

I had an sparky here since I posted this and we decided that since it heats water we will leave it alone
In the 2 years I’ve lived here the fan has never moved
And given its age it appears to be doing well
Thank you for your response

You need to turn the temperature modulation valve, turn it anticlockwise all the way out, . This valve mixes hot water and cold water to give a safe temperature

It is probably running on the backup element heater so would be costing you 3-4 times more to run.

Hi Geoff. It depends on setting. Ours got to a point where it would run constantly. I recommend stay away from this product. Look up hydrotherm hot water. We replaced our with this system at cheaper price. It works awesomely and water is actually hotter. We highly recommend it.

The thing is a piece of crap ..you need to ditch it asap for the health of your family.. just buy a standard element type hot water system .. a current affair need to do a story on this hotwater system ..yes i am a plumber

Mine is doing the same - have you found a solution by any chance?

Thank you for your replies. The solution, according to my local hot water person, is to convert it to a normal electric hotwater system. It is possible to do it with this model for about $180. He said it is not worth repairing as an air pump system, too expensive, and may break down again. So I am going to convert it.

Hi, I have the same problem. It's a crappy design issue. The drain hole for the condensation is in a crap position and also blocks up super quick and so the condensation generated by the heat pump just runs out over the top. There's not much you can do unless you want to remove the top every month or so and try to clean it out.

I have no idea. Contact a good reliable plumber and not the one advertised on the sticker of your Dux.

Mine is doing the same thing. Did you find a solution?

Did you find a solution?

Anything has to be better than this product! I've heard good things about Rheem hotwater systems..

Sounds like it is cactus, have had a bunch of water heaters pack up in my life and this is a symptom when this happens. Up to you ultimately but the plumber will probably tell you to ditch it go with a more reputable brand which will generally be a couple hundred dollars more.

Get a new system and not DUX which are duds!

Hi, I've spoken to two other people who are having similar problems and they informed me they also had to get a refrigeration person to come out also for similar issues as yours.
I'd be contacting DUX and expliaining the issue although, the service I received was useless!

When you look down through the fan on the top do you have any lights flashing in the box?The box is an orange colour which has three led lights. My sensors blew in the first 2 weeks and had to get a whole new system installed under warranty!

Hi i am not sure, i have never tried. it wouldn't surprise me if the adjustment was there just for show and not actually attached to anything

its a fixed temp thermostat set at 70 deg C, cant adjust it

If you turn off the cold water input to the tank does the water stop coming through the drain? If it stops, then you have a leaking tank and you have no choice but to replace the whole tank.

yes it does stop the water comeing out the top drain,how much would a tank replacement cost.?

As I am just a consumer like you, I'm sorry I cannot give you any idea. Do some research on the internet. You will have to get a few quotes from plumbing companies who would be willing to do the replacement. The Bunnings website
https://www.bunnings.com.au/dux-250l-airoheat-heat-pump-hot-water-system_p5102926
shows a direct replacement of the system is $2999 excluding installation cost. So I don't know how much the tank alone will cost.
It may be more economical in the long run to replace the whole system with a different make. I'm in NSW and have just replaced my leaking DUX airoheat with a similar capacity system but which has much better consumer reviews for a total of $3850.

More details are needed to give you a relevant answer.
How old is your system?
Is the noise from the heat pump system on top of the tank or the tank itself? Are you able to describe the noise - a recording would be good.
Under what conditions does the noise happen?

HI It is a Dux Aeroheat D2FH00000C 258 Ltr and the noise is coming from the top section that sits above the tank. The noise is constant and the motor runs continously. It would only come on I assumed when the system was heating but we had a big rain a week or so ago and the system began to play up. Firstly, hot water was continuously coming out of a copper pipe that is above a drain. The electrician came out and replaced the relief valve I think. Since then the section on top has run continuously. I will try to send you sound recording but I'm not sure how to attach it here. The year on the system is 01/04/2009.

Have you found a solution to the problem? The compressor/fan should stop running once the water has reached the set temperature. If it didn't stop running it indicates a problem with the sensor or the controller itself. Since the unit is now 7 yrs old, it won't be surprising that could be the issue, seeing the problems that others have been reporting with this model. My unit is 1 yr younger than yours and the controller board was replaced within a few months of installation. Although the compressor worked flawlessly since the board replacement, the tank started leaking a couple of months ago. When the tank was drained, there was a lot of rust and sludge that came out. I've replaced the whole system.

i'm keen for a class action, mine just **** itself not even 5 years old, nothing left under warranty except if the whole tank splits and then i still have to pay for the labour and installation if it needs to be replaced!

I'm up for this action I had my post removed because I told it as it is just a crappy dux product

I will be in on a class action. Our system is only two years old and has been nothing but trouble. There is no hot water yet again because of the faulty pilot light.... grrrr

One negative with these units, apart from the fact that the tanks that do not last much past their warranty, and Dux is no where to be seen to offer any sort of assistance let alone a discount on a replacement, is that they can not be left on while the household is on holidays for long periods, unless you have house sitter using hot water.